After you go, the manager will assign a teacher to you, send you a coffee bar staff training manual, which is divided into three modules, and then the teacher will give you a class, using your working time, only half an hour. I have to work at other times, and I usually go to C for the first time. Then go home and recite the training manual. Have to reduce the price. Finally, the store manager will give you certification. Authentication is also a module for you to authenticate.