The custom of Central Africa, face stabbing: In some tribes, especially in the northern border area of Chad, young men and women have to perform the ceremony of stabbing their faces when they transition from teenagers to adults. The purpose is to leave scars on the face as a special mark to distinguish different tribes, which is easy to identify. Circumcision: In the past, in remote mountainous areas, when boys were underage, the elders in the village had to gather them all together and send them to the deep forest, isolated from the world and not allowed to have any contact with the outside world for a three-month circumcision ceremony. During this period, many people died unfortunately, and the deceased had to be buried in the jungle or deep in the river. Now, this traditional custom is gradually replaced by civilization and science. When a boy is three years old, his parents will take him to the hospital for normal circumcision. Travel etiquette:? Central Africa has an international airport, 12 medium-sized airports and more than 5 airstrips. ? Tourists can see that some local people carry a puppet with them. In the past, local people were often troubled by headaches. Later, a puppet man with a jar on his head was handed down. It is said that carrying this puppet with him can cure the disease.