HELP! Do you think he likes me?[details inside]?

So there's this guy. And in science when we had to put the microscopes and stuff away he was behind me and was like stop it amy! and i was like i'mnot doing anything. and then he did it like 10 more times. then on the 11th time i turned around and smiled. and he jsut stopped. and he's always staring at me. like this other time he was talking to me, everytime we talk we seem to laugh. at one thing or another. idk. friends or does he like me?