HI, waz up?
Im a girl so I'm gonna tell u how to pull this off. first of all try to be calm but its ok if you are a little nervous, k. ask her to a movie, bring a little flower w/u Its cute if you pick it yourself, k. then after the movie gently take her hand and tell her how much you love spending time with her and compliment on her hair or how pretty her eyes are or just someting like that and then turn around and stand infront of her then look her directly in the eyes and ask her if she would like to be your Girlfriend. dont worry about getting nervous after hearing that she will 4 sure be bright red and will be worring about how she is acting.
Good luck Dude.