This is not learned, but accumulated by my own social experience. Flattery is similar to coming to a meeting. First of all, you should know something about the people you want to contact, such as living habits, social habits, entertainment habits and so on. When eating or drinking together, you should predict in advance what he will do next. You should hand him a cigarette and light it for him before he reaches into his pocket. This is the simplest thing that will happen. In fact, as long as you observe carefully and pay more attention, it is not difficult to want to come. Enough social experience, more people and things in contact with this area, and it will be natural. In a word, it is called HuiLaiShi to predict the other person's next move and speech in advance and politely obey his meaning or action.