Etiquette is the sum total of civilized codes of conduct or norms that people generally follow in social communication. It has the following basic characteristics: First, it is normative. Etiquette has both internal moral norms and external behavioral norms, which generally regulate and constrain people's words and deeds and social interaction. Follow the etiquette norms, and you will be recognized and praised by the society; Violation of etiquette norms will lead to resentment and criticism everywhere. It is said that there is a "ceremony" to travel around the world, and it is difficult to move without it. The second is operability. Etiquette norms are people-oriented, focusing on practice, and everyone can learn. Xi treatment is simple and effective. "Owners respect others." How to show respect to others, how not to show respect, etiquette has practical and effective specific operation methods. The third is the difference. Establishment of etiquette norms. Different countries and regions often have different etiquette norms because of their different national characteristics, cultural traditions, religious beliefs and living habits. "There are different winds in ten miles, and different customs in a hundred miles." This requires increasing understanding, respecting differences and not going its own way. The fourth is the times. Once etiquette is formed, it has the characteristics of being passed down from generation to generation and being practiced together. However, etiquette is not immutable, but changes with the development of the times, with the increasing frequency of internal and external exchanges, learning from each other and absorbing from each other.