How to deal with interpersonal relationships in a more balanced way (combined with the Confucian idea of mediocrity)?

Friends, first of all, put your mind right, this is the most basic requirement: I have the following aspects of the advice, I hope to be useful to you: 1. Do not speak of other people's rights and wrongs, because the person who says right and wrong, must be the person who is right and wrong. 2. 2. You can say good things about others without worrying that no one will hear you. 3. Don't brag, when friends have something to ask you, then what should you do. 4. If you're not very pretty and don't have any temperament, then a smile is your best friend. 5. Respect everyone around you, including the doorman and the sweeper. 6. Sometimes you don't need to talk a lot, listen more and talk less. 7. Be polite and courteous, which is one of the basic conditions of your good breeding. 8. Think differently, stand in the position of others to think of every problem. 9. Doing everything well, with a learning mindset, which will enable you to get twice the result with half the effort. 10. Not when to "I" to do the subject. Let others have a chance to speak, do not finish all the words yourself. 11. Don't complain, ask for advice, don't exaggerate your personality, and don't be arrogant. 12. can believe, but can not rely on 13. heart to treat heart to cherish everyone around you. 14. Do not be too calculating, and sometimes take advantage of losses. 15. Do people have the principle is right, but the principle is to give you the flexibility to use. Finally, I wish you a happy friend, popularity is getting better and better ~!