What is the common sense of Thai etiquette?

There are more than 3 million Chinese-Thai people in Thailand, and Buddhism is the state religion.

The Thai people have a lot of rules about how to treat people. When friends meet, they put their hands together and greet each other. The younger generation to the elders salute, hands together raised over the forehead, the elders should also be together to return the salute. When older or higher status people return the salute, the hands do not have to be higher than the chest. When performing the Hosannas, the higher one's hands are raised, the more one honors the elders. The higher the hands are raised, the higher the level of respect. Thai people also bow down, but only on certain occasions, when commoners and dignitaries pay respect to the King and the King's close relatives. The King kneels when he meets a senior monk. When a son becomes a monk, his parents also kneel down. It is impolite behavior to throw things at others. It is polite to bow slightly when walking past seated people.

The Thai people attach great importance to the head, which is considered sacrosanct. It is considered a great insult to touch a Thai's head with your hand. If you hit a child's head with your hand, it is thought that the child will definitely get sick; sleeping with the head facing west is taboo, because sunset in the west symbolizes death. Signing one's name with a red pen is taboo, as it is the red pen that is used to write one's surname on the coffin after death. Feet are considered lowly, and it is taboo to put one's feet in front of other people, or to kick things to others, otherwise it is all rude. It is taboo to kick the door with your feet, otherwise you will be blamed by people. When sitting, it is most taboo to cross your legs. Turning the soles of your shoes towards others is considered to be stepping on them, which is an insulting gesture; when women are seated, they should keep their legs close together, otherwise they will be considered uneducated. Don't step on the threshold in front of the Thai people, who believe that there is a deity living under the threshold. In Thailand, men and women still abide by the precept of ordination, so men and women should not get too close. Like red, yellow, taboo brown.

It is customary to use colors to indicate the day of the week. Such as red is Sunday, fuchsia is Saturday, light blue is Friday, orange is Thursday, green is Wednesday, pink is Tuesday, yellow is Monday.