In the gym, you can experience better fitness conditions.
So you can edit the language and train your running skills with your relatives and friends who you think may go to the gym.
If you can figure out one or two, it will help to have a good start.
Then send business cards to promote the advantages of your gym.
That's what business is all about. You have to talk to countless people a day. In the process of chatting, slowly lead to exercise.
When you lose each other's interest, introduce your position and the advantages of your gym.
I hope you can succeed ~ please adopt.