more signs that he likes you.

at least likes you more than normal friends that are girls. but then I really haven't seen him with any of his friends. That's not good - I still don't know who his friends are. But I do know that he doesn't do that to the other girl in the group.

• he makes sure you say bye, replying to his "see you."
• maybe the reason why he tries to get out of class as soon as possible is because he thinks you don't like him, same as you do when you have to talk to him.
• like you talk to mostly that girl, hoping he'll hear, he mostly talks to her. Maybe he thinks you'll hear.