1. In interpersonal communication, almost no one likes a cowardly person. If you are nervous, timid, humble, and flattering, you will suffer the deepest malice in the world. Only a tough attitude and strong strength can protect you from harm.

2. In interpersonal communication, people will constantly test your bottom line to see what kind of person you are. They will not stop until they touch your bottom line and hit your nail. So you might as well raise your bottom line a little bit. If your bottom line is touched, please resolutely resist.

3. If someone verbally attacks you and offends you, you must fight back on the spot. Otherwise, he will repeat the same trick next time, and there will be no psychological pressure. What's worse is that if you don't fight back, the people present are likely to follow suit, and everyone can easily offend you because they know your weakness.