The glass turntable at a Chinese dinner, and the quiet rules that turn it

In most Chinese restaurants with private rooms, the round table has a heavy glass disc in the middle called the zhuànpán (转盘), or turntable. It looks like furniture, but it works more like the table's traffic system. A few unspoken habits let a dozen people share the same dishes without anyone reaching across a neighbour.

Look before you turn

The first habit is patience. Before you rotate the glass, look around the edge of the table. If someone's chopsticks or a serving spoon is in a dish, wait until they have lifted their portion onto their plate. Turning while another guest is still serving is the one mistake the whole table will notice, even if nobody says anything.

Which way it goes

Many tables fall into a clockwise rhythm, and the easiest thing is to follow whichever direction the table has already set. Turn slowly, with your palm flat on the rim instead of a quick flick, so soup bowls and teapots stay where they are. If the dish you want is only a short way off, a small turn is kinder than a full lap that carries everyone's food away from them.

New dishes go to the guest first

When a fresh plate arrives, the host often turns it until it stops in front of the most senior person or the visitor. If that is you, take a modest spoonful and then gently move the dish on. If you are not the guest of honour, let a new dish go past once before you serve yourself, so it reaches the right person first.

菜上来，先转到客人面前。(Cài shànglái, xiān zhuàn dào kèrén miànqián: when a dish arrives, turn it to the guest first.)

A few smaller courtesies follow the same logic. Put shells and bones on your side plate, never on the glass. Keep tall bottles near the edge, where they won't hide a dish from the person across from you. Hardly anyone will explain these rules to you, but people will notice when you follow them.