DOES HE LIKE ME!?!??!?! 10 points for most descriptive answer! PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!…

Hello! So me and this guy, lets call him Bobby are flirting a little. I have gym with him,and when I walk in, he gives me a once over, looks away, and smiles. He the goes to the back, where I always go, but he always moves RIGHT in front of me. He then turns around a lot, and sometimes smirking. I wear a sugar lip and sweatpants, so its not like he can see something. We haven't talked at all, because he is really popular, and I am not all that. How can I start flirting with him more? Like how can I get him to talk to me. I am pretty shy, so how can I show him I like him too? Please help! He doesn't have a girlfriend, and never has since he got here in 6th grade. Whenever I p by, he brushes against me, like ever time. He also shows off a bit when I am there, such as doing something bad. He is GORGEOUS, but I think of my self as ugly. Thank god, I friended him on facebook before I liked him, or else I would be freaking out about that. He is tall, with blondish redish hair, and has a great laugh and smile. His pupils are pretty big when I am around, but I don't know if they have always been like that. We are both in the same grade. PLEASE HELP!