There is another saying: wine is full of respect, tea is full of deceit. It means that the fuller the wine, the more respectful it is. It's impolite when the tea is full.
There is another saying: tea is light and wine is full. Therefore, basically, it is respect to pour tea at seven points and wine at eight points and nine points.
At the end of the wine, pour the wine first, then pour the tea, and the wine is half full of tea. The wine is full and the tea is half. This means respecting people. Knock on the table a few times when others pour tea for themselves to express their gratitude. Knocking or not is not very particular, just to see if all localities attach importance to rules.
Extended data:
China is the hometown of tea, with a long history of tea cultivation, strict tea worship etiquette and peculiar tea drinking customs. China has been drinking tea for more than 4,700 years since the Shennong era. Tea ceremony is predestined friends, which has existed since ancient times.
Guests come to offer tea, which is the earliest traditional virtue and etiquette of Han compatriots in China. Until now, guests always make a cup of fragrant tea when they get home. Celebrations, but also like to entertain with refreshments. Tea party is simple, economical, elegant and solemn. The so-called friendship between gentlemen is as light as water, and it also refers to tea with pleasant fragrance.
China Han compatriots also have various customs of substituting tea for gifts. Hangzhou, the capital of the Southern Song Dynasty, every long summer, each family cooks new tea and gives it to relatives and friends with all kinds of fine fruits, which is called seven teas. This custom is to put two olives or kumquat in a teacup, which means good luck in the Spring Festival.