According to the custom, the best man is served by the relatives and friends of the man, the bridesmaid is served by the woman, the floats are opened by the best man and the bridesmaid respectively, the bridesmaid opens the bride's car door, the best man opens the groom's car door, regardless of getting on or off, the bride and groom must take the first car, and the best man and bridesmaid take the second car, no matter where they are on the road or by car.

In addition, the important duties of the best man are to assist, wait on the groom, take the coat, bring happy cigarettes (but don't bring cigarettes yourself, bring them to the groom when necessary), (happy candy is brought by the bridesmaid), and so on. The bridesmaid will accompany the groom to welcome guests at the gate. When entering the door, the bride and groom walk in front, followed by the best man and bridesmaid, and they must be male left and female right, if the bridesmaid doesn't.

Finally, at the banquet, your duty is to stop drinking, which basically depends on you. After all, people have work at night. So it's best to be prepared first, but it's best not to drink fake ones, which is unlucky. You can take some medicine.

Generally speaking, the best man's duty is to complete the etiquette with the bridesmaid, assist, serve the best man, stop drinking, and, oh, yes, hold the red envelope in your hand and give it to the groom when necessary.

In addition, the dress must be consistent with the groom, not his Tang suit, but your suit. If he wears a suit, so do you. And there is no need to give the best man a red envelope on the wedding day. After all, because we spend more time together, we can give it at any time. There's no need to give it in front of people. You don't need to give it where you hang the gift.