So there's this girl at school I like. She looks at me on some occasion and always seems a bit quiet when I'm around. Today she was talking about the exam with someone and when I joined the convo she started to smile a bit. She is friends with one of my friend and today he was sitting in front of me and she was sitting in front of him. For a reason I don't understand, they switched places and she was sitting in front of me but she didn't talk to me much she talked to my friend more. But she did answer a question I didn't ask her and was laughing about something stupid I said. Now the thing I don't understand is why did she switch places with my friend if she was already next to him? and should I approach her? Its the last day of school before the Christmas break tommorow and I want to do something with her during the break, and I don't want to invite her on Facebook.