yo just be you....... just go up to her and say whats up!!!!!! i had a class with you last year, ask her how everthing this year as shes telling you this "think fast on you feet" see what you have in common... once you find out ask for her phone # if she says she has a boyfriend just tell her you want her friendship..... then give her your # make sure you go out your way to say hi to her that's one way for the shy guy approach!!!