omg are you serious? You'll totally get some.
If you want it, that is. You have to want it. But you have to act like you don't want it.
ACT like you barely have time to talk to her because you have so many hot chicks wanting your attention.
DO ask her to dance.
DO buy her a drink. Not a whole lot because if she gets too drunk, there goes the evening.
Once you have a girl chosen, tell her how all these other girls are still hitting on you, but you had to tell them no. Like say these chicks caught you on your way to the men's room and you were like, "no way, I'm with HER." She'll totally dig you