I need advice about this girl at school I think she like me but im not sure please help?

A week after school started I couldnt help but notice this very pretty girl that would stare and smile and she even blushed very hard when we were in the lunch line it was so obvious. And I was at the bus stop after school talking to my friend and she was at the same bus stop with her friends and she was looking dead at me the entire time I was talking to my friend untill her and her friends left and they walked back to the school house. And when I walk past her in the hallway sometimes I she turns her head or looks down and smiles really hard and even looks like shes blushing. Me and my friend were skipping a class and we walked in a vacant class where no1 was and she was in there all by herself I intruduced myself and we were all talking about teachers and stuff. She kind of did a pose when I shook her hand and she told me her name too. That same day my a class of mine got changed and she was in my new class she laughed at all of my jokes and was talking to me alot and staring at me everytime I said something outloud in a disscussion even when the rest of the class wasnt. My friend likes her too but hes getting at her in a way I know she wont go for he left to go use the bathroom her friend asked if he likes her and she made an ugly face and said ';I dont know'; I know she doest like him at all like that. With all that said do you think she like me?I need advice about this girl at school I think she like me but im not sure please help?
Oh my goodness its almost embaressing how hard this girl is trying to get you! I think you are the only boy in the history of the world to pick up on subtle hints!! And when she made the face when her friend asked if she liked him it was probably because she didnt want you to think of her and him connected in any way shape or form like that. seriously id make my move if i were you because your friend might scoop her out from under you!