The main body of the guests should be relatives and friends. Generally speaking, colleagues, classmates or other people in society will come to the wedding banquet according to whether they are invited or not. So the number of people can be determined according to the number of invitations issued or the list drawn up. The number of relatives or family groups present is generally uncertain, and the approximate number can be determined according to similar banquets in the past.
In addition to relatives and friends, it is those who temporarily help or serve. This part of the staff is the most difficult to determine the number, because in addition to the pre-arranged staff, there are often some uninvited guests. Although there are no special arrangements, everyone is enthusiastic to help, join in the fun and have fun. Of course, they should be warmly welcomed.
However, there are generally not too many such people, because most people are knowledgeable, and since there is no arrangement, there will be no trouble. So reserve some seats, but don't prepare too much.
Besides, we should consider the time of the wedding. If it is during the day and holidays, there may be cases where adults take their children to the wedding.