The rules here in Jingzhou are ok, not very complicated. Let your brother and sister-in-law discuss gifts. Some of them are leaving. Generally, cigarettes and alcohol are indispensable. It is suggested that the gift for parents should be around 2000 yuan, or clothes, jewelry, belts or purses for parents. Alcohol and tobacco are best in even numbers.
If relatives walk around, discuss whether to buy in Qingdao or go back to Jingzhou. You can bring some special seafood from Qingdao!
If you come to propose, you need a bride price. I don't know this number. 3W or 5W will do. If you give it to you!
I hope I can help you!