"The guests have arrived, there is no tea, only betel nut is a gift." In ancient South China, there was a special custom to treat guests with betel nuts instead of tea, so betel nuts were also called "benevolence" and "binmen". Until now, Guangxi, Hainan and other regions still retain this habit.

Betel nut is even widely used in all aspects of marriage in Lingnan. Since the Ming Dynasty, Hainan has had the custom of using betel nut for marriage etiquette. "Qiongtaizhi" said that Hainan "attaches great importance to this matter, where the handover is the first guest, marriage is the gift, and the relatives and friends are not betel nuts." At the beginning of the wedding, the media and communication, betel nut rich people are all in silver boxes. When you go to a woman's house, you must not open the box, but taking one in the box is a gift. Every employed woman is called to eat some kind of betel nut. This custom extends to Fujian and Guangxi. "This may be because the juice chewed by betel nut is latosolic red, and red is traditionally considered to be festive; The prosperity of betel nut symbolizes "more children and more happiness".