令人安靜的方法

Actually there are many ways but it differs in different people
examples include:
drink a cup of cold water
take a deep breathe
have a nap
draw pictures on your textbook
chat with your friends
have some sweets
close your eyes for a couple of seconds
read a book under your desk

and many many more
Warning :(some of these are illegal)

睡觉， 不要聊人倾计。

1.唱歌2.聽音樂3.跳舞4.看書

哼一下歌 = =..............................