中国にも茶道のような観衆はある？
Light finger tapping is a customary way to thanking the tea master or tea server for tea. After one's cup is filled, the bent index and middle fingers (or some similar combination) are knocked on the table to express gratitude to the person who served the tea. This custom is common in southern Chinese cultures, like the Cantonese. In other parts of China, it is only acceptable if the person wishing to express gratitude is preoccupied with conversation or cannot actually say "thank you" when the cup is filled.
no