When a girl doesn't like you, it's probably because of who you are. You should change all of your ideals to completely match hers. Also, start dressing differently, and maybe get your eyebrow pierced and start riding around on an electric scooter. Chicks dig all of these things.
Is this a joke???? Never completely change who you are. If this girl doesn't like you for who you are, forget her! You can still be friends, but don't push it. By the way, I'm a girl, and I HATE piercings on guys!!!!