In addition to already good advice, if the guests are Chinese or Asian by majority, keep in mind these few things...Chinese people only laugh when embarrassed. If someone causes offense by their actions, the first thing they will probably do is laugh. Don't leap to the conclusion that they've done it on purpose and are having a good laugh at your expense. They're most likely sincerely sorry, and only wish to lighten an awkward situation. Secondly, there will be a number of toasts given...when someone your drink is poured, a polite and discreet form of thanks is to tap the table next to the glass about three times with your middle finger. This imitates the bowing three times if you were standing. Thirdly, also associated with the toasts...the traditional Chinese toast is performed by holding up one's glass with both hands (hold the barrel of the glass with the right hand and place the finger tips of the left hand under the bottom rim) after being invited by the host proffering the toast. The other person(s) also holds up his or her glass with both hands, and looking others directly in the eyes, all people drink at the same time. The usual Chinese toast is 'kanpei', which means "drain your glass", after which you are required to drink the entire contents at once. If you decline to drink it all, traditionally, you would say ""suei yi," which mean "according to your liking," and allows both or more parties to sip at their leisure.