You guys think this doesn't mean anything?

when this girl i liked came back to class cause she was feeling sick so she stayed home all week & when she came back  she was late to class & when she walked in to class I turn around and saw her looking at me?

I'm not really sure what the question is but the answer is a two parter that starts with my favorite language, sarcasm. She was looking at you. Not unheard of since she has eyes. Ok, whew, got that out of the way.

Alright, if you like her and are looking for signs that she likes you back... Stop doing that. Tell her how you feel, ask her out, and see where it goes. It really is that simple. If she says yes, excellent! If she says no, then you no longer have to wonder and can look elsewhere.