All human activities are influenced and restricted not only by natural laws, but also by social laws and various social norms determined by social laws. The so-called social norms, in addition to moral norms and laws, there is a very important norm, that is, etiquette norms.

Etiquette belongs to the category of morality, which is the general name of etiquette and ceremony. Refers to the system of laws and regulations of an era. In a narrow sense, it refers to the sum total of external performance norms, norms and forms that are formed due to the influence of historical traditions, national culture, religious beliefs, customs and habits, and the trend of the times, which people agree with and abide by and are dominated by ideas. There are both the general characteristics of morality and the particularity that distinguishes it from other things. It is produced to maintain and develop interpersonal relationships and is an important symbol of human civilization and society. It is not only the important content of communication activities, but also the external expression of moral culture, which has rich connotations. Etiquette also has some basic principles.