1. Pass the note, first pay attention to observation, what's wrong with MM, for example, the hair is messed up, a small animal is stuck, and then kindly remind it, but remember not to be sick.

2. Pretend to run into each other, see the book in her hand, pretend to find the change, and then strike up a conversation.

Meet at the door, concentrate on waiting for it to appear at the door, pretend to bump into it in a hurry, apologize, and invite it to have a midnight snack to apologize.

4. Pretend to leave your mobile phone on the edge of MM's seat, then use your classmate's phone to make a phone call, ask MM to deliver it, and then invite him to have a midnight snack to thank you.