Just make an excuse, don't worry, they are thick-skinned and psychologically tolerant. Rejection is a science, and they need courage and wisdom to think of each other. You Xiangzi, an expert in interpersonal communication, once said: "Promise is a technology, and refusal is an art ... Technology only depends on the accumulation of experience, and refusal depends on the common cohesion of talent and experience. People often communicate with each other through private life, which has a great influence on group life and often makes people face many troubles. In private social intercourse, many things are meaningless and unnecessary. Sometimes I really feel that I am not nutritious, bored and a waste of time, but I don't know how to refuse, because I am afraid of being labeled as an "unsociable, arrogant guy" by my colleagues, so I have to go with the flow every time. " This is a very interesting phenomenon. In order not to offend people, I nodded even if I didn't want to be invited by others. Of course, this kind of communication may be your help, but communication beyond the normal range is harmful to health and wastes money, which should be avoided appropriately.