In Chinese dining, dishes are shared communally — ordering one dish per person is the norm. Tea is poured for others before yourself as a sign of respect. Tapping two fingers on the table is a quiet thank-you for tea poured by someone else.
请 (qǐng) — Please, 菜单 (càidān) — The menu, 买单 (mǎidān) — The bill, 好吃 (hǎochī) — Delicious, 干杯 (gānbēi) — Cheers