Do u think he likes me back? help me my first crush!?

I like this guy alot. We met at our highschool orientation. He was in my group. We (as a group) played a game where you tangle up all your hands and try to untangle. I grabbed his hand and he smiled down at me. He is really cute. Anyways, at our embily we sat very close to eachother. He asked me if I was going to homecoming and i said no. I asked him and he told me he has a date. Do you think he's lying? And what are signs that he likes me? I wana kno so i can catch them while they happen