Guy help needed!!!!!!!

i like this guy and hes in my bio and spanish class.
in bio he a kid had drum sticks and hes like "i can play too!!" and so he pretended to play it on the desk in front of me. i see him starring at me through the corner of his eye. (i sit behind him)
in spanish, he would always pick on me, joke with me, he would always put his hand on my desk and he stares at me from across the room!
help?