Does he have a crush on me?

Ok this boy asked me out and then said jk after I said what on fb. A lot of people said he liked me. Ok so Idk if I am just imagining things or what but at this graduation party he was there and everyone was talking to him cuz he left our school last year so I went into the hallway and was talking to my friend and he walked away from his friends and kind of gave me that smile like he was shy and he was like saying hi but he kept looking at the ground. And then said hey. And so we started talking and stuff and since his voice was so deep I made him say at the beach get your tan on and he did and we were cracking up and he was like hhahah stop hahah And so I was like hah I'm gonna go so see ya. And I left and I could see him watch me leave and then he turned away. Does he like me or just bein nice? Because he was taking pictures with other people an huggin them but not me so I am confused! Thanks in advance!! Sorry if it's long