Does she like me????

Theres a girl in one of my cles. She keeps looking at me (or atleast turns her head in my direction....thats what i see using my peripheral vision). no one sits behind me. sometimes when i look back at her...she either smiles faintly or she just turns her head down right away...those are the only two things she does.. Sometimes she just asks me unimportant questions like...did the teacher just mention ....whatever. things that dont matter Also, she was very quick to talk about her personal life with me. We actually know each other and we've had conversations (2-3 times) and she always says hi and smiles (it seems genuine but who knows maybe my mind is exagerrating). Is there a chance she likes me? We've sort of been growing apart because im a little reserved and I think she probably thinks I just want to be left alone. I actually like her alot...but I dont want to go after her and get infatuated if she doesnt like me. Im usually not nervous with girls....but shes so beautiful, and REALLY kind and there are a million guys (and girls) hovering around her all the time. I dont even try to get her attention as often as everyone else. I kinda just wanna ask her to hangout right away...(we havent had a real conversation in 2 weeks). Bad idea?