When you go to the tasting for the first time, you need to prepare some business cards to facilitate communication with your peers. Be sure to bring your handbag and put what you need. Tasting will pay attention to the cleanliness of the instrument. It's best to dress formally so that others can get to know each other. When I see you, I greet you and nod my head. Bao Tong is full of wealth, jewels and jade.