It is a very important tea drinking etiquette in tea ceremony to pay attention to shaking hands and kowtowing when knocking hands. Details are as follows:

The first hand-knocking ceremony: peers pour tea for their peers: just put your index finger and middle finger together and tap the desktop three times to show your due respect to each other.

The second hand-knocking ceremony: the elder pours tea for the younger generation: the younger generation should make a fist with the right hand, the fist back facing up, and tap the desktop with five fingers. Generally, you can knock three times, which means jumping on the ground and bowing to the person who pours tea.

The third kind of knocking ceremony: the younger generation pours tea for the elder: the elder can tap on the edge of the teacup with one finger to show respect. Or, if an elder meets a younger generation who appreciates it, he can tap the edge of the teacup three times with his middle finger to show his appreciation.