What little things do middle school age guys find attractive?

Most of them are more desperate than you are, so all you really need to do is be nice, and show a little interest in them. Tell them you like their shirt, laugh at their jokes, if they miss school tell them you missed them. If you want to be a little flirtier you can make eye contact, smile at them, touch their arm or shoulder, that kind of thing. DON'T change yourself for them, you are already amazing and if they don't see that it's their loss.

Most middle school boys have just discovered boobs. Most middle school girls have little boobs. Middle school boys like little (and not so little) boobs. Any other interests are secondary.