Run a gym first, perform for free the week before, and do publicity. You can advertise online, or you can advertise in the community first, print an introduction and distribute it to the elderly (especially those who see exercise in the morning). The following week, I began to collect tuition fees, apply for membership cards, provide Tai Ji Chuan and Baduanjin exercise venues, and said that members can get a few discounts and give gifts for free at a certain time or for several days and hours!