Any clue on what i should do...or what would YOU do?

so im sitting in social studies...nothings happening, and my one guy friend (A2)comes over and starts talking to me. that happened yesterday and today. but he always comes and talks to me, its no big deal with me. well 2 days ago, another guy friend (A1) asks him, "is there anything going on between you two?" of course..A2 says yes. so then that night, everyone asks A2 if he likes me. he says he does, as a really good friend. so then last night, he was soo flirting with me. and he was trying to teach me how to drum (we had a concert last night with all the bands in the school district. had to wait like 2 hours. he's a drummer.). so then today A2 came over and was pretending that i was his gf and stuff. so since he was there i figured, why dont i ask him to sharpen my pencil. i dont feel like getting up. so he does and winks at me. then the bell rings and he leaves. the first 5 minutes of first period, A1 was telling me how he thought that A2 liked me and stuff.