Always Act Like People Who Sit Next To Me

I always act like people who sit next to me, even when we aren't know each other. Does anyone like me?

Today, I went to an extra class, TOEIC class. I sat next to a boy. As I said, I acted like him a little, and It made me felt uncomfortable. He has a girlfriend, so I don't want to act as him. I tried to act differently. I put my left hand on my right arm instead of folding my arms. Then he acted like me. Did he do that intentionally to text me if I care about that? I think so. He older than me. Maybe he can realize my weird actions.

I should not care about it in my next TOEIC class.