Question

two things don't do in school

Answer 1

Don't bunk the classes in School and always be disciplined.
Don't talk rudely to our teachers and always be polite to everyone including our classmates.
Hope it helps and pls mark it as the best answer. :-)

Answer 2

Don't misbehave with teachers and your friends in class

shouldn't use rude words in class

be far from the company of bad friends

always be in the company of good friends

so be polite to the teachers

hope so you will follow:)