First of all, don't wear all the buttons in a suit. If you wear all the buttons, it's a Chinese tunic suit. In addition, when wearing a suit, the shirt inside must be flat and clean. Don't be sloppy and wrinkled. Third, when wearing a suit, the shirt inside must be tied in the waist, and don't flash outside. Fourth, don't wear sneakers when wearing a suit. Fifth. When wearing a suit, you must wear pants. You can't wear trousers, ordinary casual pants. Fifth, hair should not be messy when wearing a suit. Sixth, when wearing a suit, the sleeves of the shirt are slightly longer than those of the suit.