If you're going to hang around her, [u]you can't act like nothing ever happened[/u]. Basically don't hide anything and don't be afraid to be a bit emotional or afraid to talk about your emotions/feelings. But that doesn't mean clinging to her and keep trying to get her. Just act as if you're okay about the rejection, but you're still comfortable talking to her. You'll basically have to act as if you're a close friend to her.