Well some boys will try to impress you with something , others try to get your attention and some just try to annoy you because they try to hide their feelings. Truth be told you never know when a boy likes you. But what my boyfriend did (also in 7th grade) is at first he tried to impress me with jokes but later we went camping and he was all nice and stuff (we went camping before we were together btw) he roasted me a marshmellow and lent me his jacket and stuff. But my friends boyfriend before they went out he was always trying to annoy her or trip her or something.
So boys will do different things if they like you. Sorry if this was no help