Does she like me?

So there s this girl in my class that sits behind me. We barely even talk but whenever I make eye contact with her she either smiles at me or just keeps making eye contact. In fact a couple of days ago she held my hand when I was walking past her and held my hands for solid 10 seconds and then she let go. Yesterday when I looked at her she smiled at me and I asked her "why you smiling" in a nice way. She didn t say anything( she was probably shy to tell me that she likes me I guess). I really like her. But the thing is she s always with her friends and I barely even talk to her and her friends. I want to ask her out but I don t know how to tell her. Furthermore, I don t have a car so I can t take her anywhere and there s nothing special around my school. I believe she rides a bus home and even if we go somewhere how will I be able to drop her to her place. I believe she likes me but I just want to be sure. Any tips? I need to ask her out or at least get her number as soon as possible because I don t want any other person to be with her. Do you think I should ask her number right after class. And If I m lucky enough to get her. Where should I take her? I even get jealous, insecure, and mad at myself whenever she talks to other guys(not always though). Please help me I don t want to lose her!!!