In a changing room

The next day after school I walked into a school changing room and there was this boy who doesn't speak too much (I bet you have this type of person in your class or workplace too).

Our lockers are near each other so I meet him quite often. He never smiles.

I decided to do something similar to what the bus driver did to me.

When I was leaving I said: ,,Bye, have a nice day." and smiled.