What are the rules for duet of Guangxi folk songs?

You can sing a duet or solo, but the content should be relevant and not off topic.

Folk songs, which originated in Guangxi, are one of the favorite activities of Zhuang people, including individual duets between men and women and group duets between men and women. The content of folk songs is very rich, and the theme is generally the pursuit of beautiful love ideals by young men and women. Folk songs include meeting songs, invitation songs, new songs, love songs, oath songs, farewell songs and so on. Folk songs must have certain rules. In the wild, first ask the other person's name, marriage, family situation and so on. In order to hear this song clearly, it is necessary to keep a certain distance from the singer. Don't sing intimate songs in the house. Praise the main family warmly at first, and then sing other songs.