1. Don’t speak too arrogantly, don’t get to know people too quickly, and be convenient for others and yourself.

2. It’s okay for others to laugh at themselves, but you must not agree with them.

3. Change "whatever" to "I'll listen to you", change "I don't know how" to "I can learn", change "do you understand?" to "did I understand?" ”

4. When others scold you, you must listen; when others praise you, don’t believe them all.

5. People tend to be the first and the last. When introducing themselves, choose the first or the last.

6. Don’t be stingy with your compliments and friendly words.

10. Regardless of whether you are a man or a woman, do not tell other people dirty jokes easily, otherwise others will think you are frivolous.

11. Learn to say no. No one will remember your kindness and you will only get more and more aggressive.

12. Have measured trust and reasoned suspicion.

13. When you are awake, do things; when you are confused, read.

14. If you can’t speak, don’t make a sound. Silence or a smile is more suitable.

15. When someone tells you something, don’t just answer “I know” without thinking.

19. When you try to join a group of people, if they just turn around If you come over and your feet remain in the original direction, it means they don't welcome you to join them.

20. Good or bad, it all depends on a thought.

21. What people remember is not what you said, but how you felt when you got along. Almost everyone likes to talk about their own affairs, so ask more questions.