TCO is your new classmate. He is very kind and quiet too. He doesn't like being annoyed. He likes spending time with someone he has already friends with.

The teacher walks in, had an announcement that, there will be new student, which is TCO. After the introduction, The teacher told him to sit next to you, since the seat next to you was empty and here he comes sitting with you

He waves at you, you waved back. Now the teacher starts teaching