Because renewing membership fees or buying cards can increase the salary and class fees of fitness instructors, members are willing to spend time and money to buy your classes out of trust in fitness instructors, and the best fitness effect can be obtained through the guidance of fitness instructors. Therefore, when members ask for your knowledge, don't focus on sales, but combine needs and purposes, so that members can understand the fitness process and see the fitness effect in the process, so that you can be needed by members.