First: First of all, you should have a good image. The first impression you give customers is the most important, such as clothes, hairstyles, actions, words and deeds, and so on.
Second: understand the customer's occupation, personality, family members, decoration style and grade.
Third, talk about the customer's life, family, life and career.
Fourth: go deep into the hearts of customers and let everyone become friends.
Fifth: think of customers from a certain part, save money for customers, etc.
Sixth: recommend your own works, and you'd better come up with what you are best at. For example, if you encounter some problems that you are not very clear about, you should learn to change the subject.
In the process of negotiating with customers, designers not only talk about creativity, but also talk about details.