How can I tell if this man's fitness club is formal?
Whether the service project is formal or not, I think the first thing depends on how the store is, how big it is, and how the staff serve it. After that, it is best to have a chain store, which is the most convincing. I heard a friend say that a shop called Lingyun China Health Care is very good, but I have never been there. They also join in, so it must be formal!