This is pretty easy. You don't need 'game'. You just need to keep a conversation going with her when you see her, and then workout a way to contact her.

Like this, say you both dig Pink Floyd. You have all the mp3's - so you say so - then you proceed to say - "I'll hook you up, I just gotta organize it and then I can shoot you an IM or I can bring em over on disc".. WHAM you're in.