Disclaimer: You must be atleast somewhat comfortable with girls for this to help.
Well basically, I graduated high school last year and if I knew this stuff back when I was in high school, I would of gotten so many girls. My first year in college I got with more girls than I did all 4 years of high school.
Confidence aka GAME
Confidence is the only thing you need to get chicks. It doesn’t matter what you look like. As long as you have confidence, woman can sense it like money and will be attracted to you. Here is my buddy greg, your prolly thinking hes the ugliest mofo uve ever seen, but belive it or not, he gets more chicks than you can imagine. All because of his confidence and swagger around women.
Tip to check if a girl is checking you out
If you think a girl is looking at you, Look at your watch, count to 3, then look at her. If she looks at her watch also, then she was checking you out. It is a natural human reaction to mimic the actions of someone that you are interested in. By looking at your watch, you will spark her curiosity and she will be wondering what you are waiting for, and with no other source to gather information from, she will look at her own watch to try to at least determine the time of your expected event.
Body Language
This is probably the best thing to find a girl that likes you. There are so many subconscious ways a girl shows that she likes you without her even knowing. Here are some good ones.
1. Once you make eye contact with a woman, watch her for a few seconds after she looks away. If she does something that implies that she has become nervous due to you making eye contact, this means that she is interested in or attracted to you. For instance, she will play with her hair, adjust her clothing or jewelry, or fiddle with something in her hands.
2. "read" her palms
She will expose her wrists and palms of her hands only to people she is interested in. This is a subconscious display of being submissive to you, in which her body is saying "If you want me, you can have me". Like ask her for a piece of gum and if she gives it to u with her palm up, she likes you
3. The lean
Leaning foward is also an easy sign to pick up. If her shoulders point at you and she is leaning towards you, then you can put your mind at ease, it's yours for the taking.
4. You coming in or what?
When her legs or feet are widened this means she is very comfortable with her surroundings and with you.
5. Say "cheese"
This is a no-brainer. If she smiles at you when you make eye contact, get over there and talk to her.
6. When did I become funny?
One of the best signs you can hope for is when she will laugh at just about every slick thing you try to say. You may begin to think that you might actually be pretty funny... but your wrong, she just likes you alot and that's even better!
7. As good as gold
If she touches you multiple times while she is talking, for instance, tapping you on the forearm when trying to make a point, remember to tell her what you like for breakfast so she knows what to cook in the morning.
8. You must do your duty
She will make eye contact with you and hold it for a longer than usual period of time, almost uncomfortably long. Before looking away, remember to smile at her. This will let her know that you are interested and are a nice guy. Following this, you may also notice her glance at you occasionally. After the second or third look it should become obvious to you that she wants you to talk to her, so it is your duty as a player to give her what she wants

9. The flip
If you notice a woman flip her hair and immediately afterward glaces your way, she is showing her interest in you and trying to get your attention focused on her by catching your eye.
Signs to GTFO
1. Whenever a woman that you are macking on rolls her eyes it means that she is embarrassed by your presence... and is attempting to display to everyone else that she is not interested in you. If this happens to you turn around and walk away, you have little (if any) chance of getting with her.
2. Crossing her arms is a tell-tale sign that she is either agitated, nervous, uncomfortable, or just does not like you. It's time to change your strategy, and quick.
3. Crossing her legs is just as bad as crossing her arms, but can be worse because once her legs are crossed, she will most likely cross her arms also. However, if her legs are crossed and pointing towards you (knee points toward you), this means that she is nervous, but has interest in you. On the other hand, if her knee points away, your in trouble.
4.The "lean back" is the most dreaded sign in all of body language. If she is leaning away from you, and it is very noticeable, my advice is to forget her and move on to your next prospect. Only a very experienced player can warm up to a woman after noticing this type of behavior, but if you think you've got the skills... give it a try, you've got nothing to lose.
I was given these tips in an emial by my older bro at the begining of the 05 school year, and it works. Seriously guys, u will pull so many chicks its crazy.