It can be given on the wedding day or in advance. If there is a gift in the auditorium on the wedding day, you can give it to them if you are optimistic about whether it is a man or a woman, and register your name after giving it. Generally speaking, it's 200 yuan. Give more if you have a good relationship, and generally give less. It is better to give more money as a gift. There are many wedding procedures, so I don't want to write them in detail. Just take a look at it. If you go, you will join!