Most guys are likely to act smart or be like someone else just to impress girls, yet they never succeed with this policy. The solution to this question is to be original so as to impress your girl. Read further to get acquainted with some tips for impressing girls.
Good work starts with good hygiene. Usually guys are careless about personal hygiene but girls are really watchful about this. So, be well-groomed and wear clean clothes to attract your girl.
Have a good attitude because girls don't like guys who flaunt. Be modest and don't attempt to impress everyone. Guys, slightly inclined towards good humor, are liked by girls.
Show respect towards everyone and give them their space; this will fetch your respect from them too. Especially with girls, showing respect works even better.
Have healthy conversations and don't speak too much before girls. Speak in moderation; the other person should not feel that you're not interested and also don't speak in excess so that he/she doesn't get time to speak.
Prefer talking on topics of common interest. Girls don't like guys who talk about themselves only. Show interest in her speech. Ask her about her interests like hobbies, favorite books, music, etc. If she starts asking you about yours, speak briefly and again focus on her interests. 
Try to flirt. If you both make an eye contact, just pass a smile. Perhaps she will get blushed or start looking away, but don't react. Remember you don't have to stare her down. If she likes you, she will definitely give glances.
Always respect her opinion and ideas, and don't criticize her. Give her compliments and never talk anything disgraceful to her friends.
Be romantic, but not in excess. If you've been dating for a month, you can attempt a romantic gesture. For example, hold her hand while looking in her eyes or get down on your knees to bow her.
Start speaking with her casually. If you don't know the girl, start friendly conversation. Ask for the time, and praise her watch.
Make an effort to get her attention to your plus points and away from negative points, remember to be original.
Don't tell her straightaway that you like her. Ask her out. If she refuses, don't take any tensions. You can change the style and say ‘Oh! Actually we friends are planning to go on a dinner; I thought that you might like to join us".
Don't get stick to her. Give her some time and like this, you'll definitely get her attention.
So how to really impress a girl? Seems like a tough question isn't it? Well the true art of impressing girls lies in the simple fact that they are not impressed by anything which seems fake or unoriginal. Most guys tend to act or be like someone else just in order to impress girls but never succeed with it. The key here is to be an original as possible in order to impress your girl. Read on to find out some of the best tips on how to impress a girl and achieve desired results.
Don't try to impress- Yes here it is the very big secret in front of you! The best way to impress a girl is not to impress her. Now you might be wondering how does this really work. Well when most guys try to impress girls they tend to become more unauthentic and try to show off with almost anything and everything. Girls are not impressed by such tactics and would end up putting you in the "Show off" category. The best way to impress a girl is to be yourself and let things happen automatically.
Natural talent works- If you thought that girls are impressed by money and material things all the time than you are highly mistaken. If girls are impressed by your money than they are probably looking for money and not you. The best way to impress a girl and retain your status is by the way of natural talents which involve the way you talk and present yourself. You need girls to respect you for what you are and not what you possess.
What do you have? - No girl would be impressed by you unless you have something which is different from the rest. Girls normally get hit on by several men everyday and almost all those men try to impress them with all they've got. If you are doing and following the same tactics as all those men than you would never succeed in your quest to impress girls. Show your true self while trying to impress a girl and try to be your best self. Don't talk to her with the quest to impress rather try to do what you normally do. One of the best aspects which almost every girl demands and gets impressed by is intellectuality. Try to develop your intellectual skills. This can be done by the way to reading books and being up to date with the latest happenings. Remember being a good talker is the foundation of impressing almost any girl.
Impressing girls is one of the most time-honored traditions for young men. And, the ability to impress a girl who is out of one's league is not an easy task, but it is an art form that can be learned with a bit of patience. Follow these steps to impress a girl who is way out of one's league.
Instructions
Step 1 Understand what a girl wants and then provide it to her. If you are trying to impress a girl who is out of your league, discover what it is that she really likes. If she is interested in music or art, talk to her about those subjects with skill and insight. If she is interested in foreign cultures, learn about them and talk to her about those.
Step2 Be cool, calm and assured. Girls like guys who seem at ease with themselves. One thing all girls hate is guys who are embarrassingly needy. So, try to remain reserved and calm while showing her your interest. If she is pretty and popular, she will appreciate the fact that you don't run around trying to impress her.
Step3 Make it your business to casually be near her when she is in social settings. A soft smile and a "hello" go a long way in these circumstances. Avoid running up to her with a lot of hype. Girls like guys who notice them and make eye-contact with them, but who don't fall all over them.
Step4 Share music, funny stories and cool websites with the girl. One way of cooly showing your interest in a girl who's a bit out of your league is to send her short text messages or e-mails with MP3 downloads of favorite tunes or jokes you've heard. This is an innocuous way of showing interest without appearing obsessive.
Step5 Focus on looking your best, smelling your best and smiling your best. Research indicates that girls look a lot less at physical appearance than they do at overall male presentation. So, you don't have to look like a movie star to get her attention. Just take the time to be well-groomed and good-smelling. Also, flashing those pearly whites at her frequently goes a long way. In total, being confident is the best way to impress her.
Step6 Master the art of appearing not to be trying to impress. The surest way to win a girl's attention is to stop being so obsessed with trying to do it. If you will simply relax and be yourself and show her attention without being fake, you stand a much better chance of winning her attention.
Some more Steps--
1-Be well-groomed. Brush your hair, shower, wash your face use deodorant, a little cologne, and apply acne medicine daily (if you have a problem with your skin). Don't wear your pants off your butt, often called "sagging", it's not that attractive to the majority of girls. This is essential if you are even going to approach an attractive girl . Wear clean, attractive clothes that fit. (If in doubt, get an older sister or close female friend to help you in this department.) Don't wear skin tight clothes, but don't wear clothes that are too baggy either, girls hate that.

2-Have a great attitude. Be fun to hang around with, easy to laugh with, and be outgoing. Just don't be full of yourself. A girl may like an overly cocky guy at first, but eventually, she will find it selfish. Don't try to impress everyone - girls like humble guys. At the same time, a sense of humor is always good. Girls love it when guys can make them laugh.
3-Show respect- If you respect everyone and give them their space, they'll all respect you. With girls, it works even better. If they see you respecting everyone, and not getting pushed around while you're at it, they will be reassured that you will treat them right. Be kind to all
4- Have good conversations. Try to aim for you both to be speaking half of the time, but make sure that you are saying something worthwhile; it's not attractive when only one person talks endlessly or when they say bad words like Shit and such... Another thing to watch for is her attention. If she isn't paying complete attention, do not repeat yourself several times. This makes girls feel you are desperate, and usually annoying.
5- Show interest in her - let her talk. The #1 mistake when talking to a girl is focusing on yourself. Girls are way more comfortable when they talk about common interests. Ask about their interests, hobbies, favorite books, music, etc. If she asks you a question, answer it in a few, short sentences and then redirect the question back at her. This engages her in the conversation. When in doubt, compliment her like your hair looks nice today. Even if a girl does not like you yet, complimenting her will make her feel good about herself and think positively about you.
6- Try flirting! Don't be obsessive! If you both make eye contact, do not be the one to look away, but do not stare for too long. When you both make eye contact, just give a slight smile. Touch her arm or shoulder for a few seconds. Physical contact is a great way to show you're interested. If she seems uncomfortable, do not do it again.
7- She may look away and she might blush a little. Be careful though; you don't want to stare her down. A good move is to look away, and if she likes you she will shoot you glances. Watch for that. And be courteous. Open doors. Give gifts. Do kind things. Girls love that.
8- Respect her friends and their ideas and opinions. Always speak highly of her and never talk trash about her. It will damage her reputation and yours. Hopefully then it will work both ways - she will be tolerant of your friends. Be careful not to compliment her friends too much, however. Example: You may say "Your friends seem cool. We should hang out with them and my friends some time, I think they'd get along". You may not say "Sally is so hot. She has the nicest eyes". You may think getting her jealous is a good idea, but it just makes them angry.
9- Have your friends be nice to her It's a fantastic thing when your friends don't make a total fool of you. Warn them ahead of time and avoid topics pertaining to embarrassing moments of your past or awkward jokes that make very little sense. Don't introduce her to your friends right away though. You want her to like YOU, not start dating one of your buddies.
10- Be polite to her parents. Be kind to everyone, especially them. Don't be too over-the-top charming with the parents, however, or they'll think that you have something to hide.
11- Don't criticize her. Unless she asks for constructive criticism. And even then she probably wants you to compliment her.
12- Be romantic- but not over the top. If you've been dating for a while you may attempt a grand romantic gesture, otherwise, you'll look like a stalker. It's also okay to be a little cheesy, like giving her a bouquet of roses and a loving poem. It may sound like a bad idea, but girls will find it thoughtful if it came from your heart. A better idea than being cheesy is to really LISTEN to her & remember things she likes. Then take her somewhere she's mentioned wanting to go, or buy her the books she's been wanting & hide a little note inside. Flowers & candy are really cliche & don't really mean much since anyone can just buy someone flowers. Showing you've been listening to her wants & needs goes a LOT farther than roses!!
13- Start talking to her casually. If you don't know her, make friendly conversation. Ask for the time, and/or compliment her watch. Avoid throwing too many compliments about clothes or shoes around, that might make women think that you are homosexual as many gay men are fashion-forward.
14-Do not play "hard to get". Sure, you'll get their attention for a day or two then after a while, the girl will end up frustrated, and she'll think you don't find interest in her anymore.
15Be careful with what you say. Do not discuss bodily functions in her presence, or make jokes of a sexual nature unless she starts doing so. Also, don't discuss anything gross or inappropriate. She'll get grossed out.
16Hum a few bars of a song she likes around her. She might think of you whenever she hears that song. And she'll probably be impressed by your good taste in music. Some girls have actually dumped guys or stopped liking guys when they insulted the music they like. So, it's OK not to like her music, but don't be insulting her favorite singer(s)/band(s)! Try to figure out what music you BOTH like.
17Start an inside joke with her! She will feel included and become closer to you. It also gives you an easy-to-come-up-with conversation starter. Try not to overuse it and kill the joke.
18End later meetings with a hug, or plans to meet some other time, if you can. Make sure to tell her that you enjoyed her company.
19Tell her that you "like her" frequently. Ask her out.
20Touch her occasionally, like on the shoulder or hand. Be sure do not touch her private parts, however.
21Opposites attract. Be a courageous gentleman, not coy like a lady might be. Stand up for her if something is wrong.
22Show your funny side. A lot of women look for sense of humor in a partner. You should however be mindful of their reactions to your jokes and avoid offensive humor. Unless they like that. Find out if she likes comedy. If she watches Comedy Central, find out her favorite comedian or favorite impression and try it out for her.
23Make her feel good. This is a really good thing that impresses girls. They love it when you let them know you care for them. If she's sad, just simply put your arm around her neck. Make her happy, at least as much as you can. Flirt with her, hold her hand it will make her feel special.
24Don't ever make fun of your friends around her If you do, it might make her think that you're a jerk. When someone makes fun of other people, it makes a woman wonder what they might be saying about HER when she's not around!!!
25Be honest. Do something creative, something extraordinary or something that others never do. That creates a question mark for the girl about you, and it also makes you interesting.