The finger tap that says thank you: small table codes in a Guangzhou teahouse

In a Guangzhou teahouse at half past seven, the loudest thing is the trolleys. The talking runs under it, and a surprising amount of what passes between people at the table is done with hands: a knuckle on the wood, a lid tipped open, a spout turned away from a neighbour. None of it is explained to you, because none of it is thought of as a rule.

The tap that means thank you

When someone fills your cup, bend two fingers and tap the table twice near the cup. That is kou zhi li (叩指礼), the finger-tap thank-you. It exists because saying the word out loud would interrupt whoever is speaking, and the pour happens constantly — every few minutes, all morning.

The register shifts with who you are. Younger people, or anyone being poured for by an elder, often tap with the knuckles of the index and middle finger together, the hand slightly curled. Peers use one finger. Nobody will correct you if you get the variant wrong; they will notice that you tapped at all.

The lid, the spout, and pouring for others

An empty pot gets its lid tilted open and left resting at an angle, or set upside down on the rim. That is the signal for hot water, and staff read it from across the room without being waved at. If you keep the lid shut and raise a hand instead, you will wait longer than the table next to you.

Pour for the people around you before you pour for yourself, starting with whoever is oldest. When you set the pot down, turn the spout so it points at no one — a spout aimed at a person reads as pushing them out of the conversation. It is a small adjustment of the wrist, done without comment.

The etiquette is not ceremony. It is a way of keeping a two-hour meal from stopping every ninety seconds.

Where to try it

Old teahouses along Enning Road and the lanes off Shangxiajiu in Liwan open around six or seven in the morning and are busiest before nine. Weekday mornings are the ones to aim for: tables of regulars, newspapers, one pot of pu'er between four people for hours. Order tea by name at the door — pu'er, tieguanyin, chrysanthemum — and the rest of the morning arranges itself around it.

在广州，斟茶时用两指轻叩桌面，就是一句不必出声的谢谢。