Very simple, communicate with people more. Successful businessmen are smarter than the average person, but not everyone is naturally talkative. Training the day after tomorrow determines a person's ability. People who do business can't choose customers, and they meet all kinds of people. This is a good time to exercise yourself, understand each other's needs and find a topic to talk about. You can learn a lot in life. Confidence is for yourself. Let others think you are confident, and gradually you will be confident. When you are not confident, you will put on airs and the momentum will be overwhelming. Let others follow your ideas, and don't be taken away by others' ideas.