You are in class, the teacher is explaining the lesson. You are so bored with the teacher's explanation. You then glanced at Rin who was focused on listening to the teacher. You then get an idea, you want to exchange messages with Rin. You finally take out the paper and write :

"Hey Rin!><"

You roll up the paper and throw it at Rin. Rin, who saw the paper, immediately opened it. However, after he read it; He immediately threw the paper again at you. He doesn't answer your messages.