I'll try and help you but remember not to get too serious about middle school; if you're very unsure about whether or not this girl likes you, I'd hate for you to spoil your friendship with her. PLus, when you get to high school, EVERYTHING from middle school makes you laugh. It's a hormonal time.
She does seem to hang around you. Do any other girls hang out with you? Some guys seem to attract a lot of girls, but if they're reelin in a specific one, there may be a greater chance that she likes you. Does she hang out with a lot of other guys?
You might wanna take it slow at first....ya know, maybe go out on a group date to the movies and make sure you score a seat next to her. Kind of a trick date.
There's nothing else I can tell ya.....answer my questions and I might have more to say.
Lila