How did ancient people write famous posts when they met others? What are the rules?

The person who wrote worship in ancient times was called "XXX" plus official position. Most people without official positions are "so-and-so" laity and the like. Most of the things ahead are how noble the person you want to meet is, how to be respected and so on. In the middle, I usually introduce myself, and then write down the reason why I want to visit. Later, write some flattering and befriending words and tell him what kind of family friend he is. Finally, add your own address and name, and it is basically ok.