So there are two courses of action that I can see:
1) PERSUADE her to try just ONE date and do your best to make it a good one.
2) Ask her out as a friend, don't 'weird her out' with any feelings like it is a date, and DON'T make a move, just make her feel comfortable around you. Then later you could make your move.
But don't take my advice to the letter. Really just be yourself, don't do anything you wouldn't normally do. Laugh, be comfortable, talk, make conversation. You don't want it to be awkward at ANY time if possible, and you don't want to do anythign that would weird her out. I'd need more information for anything more concrete... and I've got a college essay to write, I can't be distracted by thinking about girls right now!

