I like this girl at my college but I don't know if she likes me. She asks me to help her when she gets stuck on her computer but she asks me even when the teacher is there and on Monday she was playing with her hir and looking at me at the same time. Does this mean she likes me

Talk to her more. Get to know her better before you worry about how she feels about you. She can't like you if she doesn't know you.

If she is looking at you and playing with her hair at the same time, yeah buddy she likes you!!