be honest take a leap of faith and tell her you never know she may feel the same, or hasn't thought about it but now she will You have to be honest with her about your true feelings. She apparently doesnt know you feel strongly about her as "girlfriend" material. You cant magically turn her into your girlfriend, she has to want to be your girlfriend. You can do it two ways, one, wait until your alone with her and say something like " Do you think our relationship could be anything but friends" see how she reacts and if its positive, then make a move. Two you could just come out and ask her, but either way be prepared to accept her decision and remain friends.