《礼记·少仪》
主人献给介的爵，宾回敬主人的爵，主人献给撰的爵，这都是必饮之爵，都放在各自席前的右边。平常吃鱼，如果上的是烧好后又浇上汁的鱼，就要叫鱼尾朝前。
赞币自左，诏辞自右。酌尸之仆，如君之仆。
The host offers the toast to Jie, the guest returns the toast to the host, the host offers the toast to Zhuan, these are all toasts that must be drunk, and are all placed on the right side of their respective seats. When eating fish, if it is boiled and then seasoned, the fishtail should be facing forward.