You should do really nice romantic stuff for her. If she has a car leave a bunch of balloons w/ notes and candy in them...(One of my personal favs) Leave her some roses in her room at her house(ALL chicks love them, I swear to god) Figure out what kinda music she likes, if she is looking for any particular cd's. Then leave it in her locker at school w/ a note inside the case.(Find out the combo from a friend...) Dude this way she'll "know" that your a hopeless romantic and if she doesn't go out w/ you she will regret it for THE REST OF HER LIFE! You guilt trip her into it...