Does he like me or am i just imaging it ?

So theres this guy (i like him) and i think he likes me but im not sure. So he is always teasing me (playfully) and hitting me(playfully). It always seems like he tries to talk to me for no reason at all. And hes in my homeroom ( and all my cles) and we had this door decorating contest and ask if my friend wanted to come in to school a little early and help me with it. He overheard me and asked if he could come to. Also he always writes on my binders with white-out and always wants me to write on his. One of the things he wrote on my binder was "his name and then is ahmazing by my name (as a joke i think) and then he drew a little heart next to it. Then i signed his binder and put a heart next to it and he smiled. okay so does he like me or am i just imaging it???