First of all, you'd better find out his exercise rules and know which day he goes to the gym every week, stays in the gym for a few hours, and what fitness programs he likes to use.
When you know all this, you can pretend to run into each other when he comes, and then dress up a little more foreign. Wear a little light makeup, wear a tall ponytail, and put on the sportswear you think is the best.
For example, when he is running, you pass by him to drink water, or run on the treadmill next to him. Please pay attention to this fake meeting, which will make boys feel wow, this girl is so beautiful and attracted.
If you don't like this detour, be bold. Don't be shy to ask someone else's contact information directly. It's better to find your friends together, which will make you more confident.
Because if you are rejected, someone around you will not be too embarrassed. I've seen it in the gym before. A boy asked a girl for contact information, and then the girl refused directly.
It was awkward. The girl just turned her head and left, and the boy stood there looking quite pitiful. However, this kind of thing still needs to be prepared. If you are not the other person's type, there is a great possibility of rejection.
But we should not be discouraged by this. Don't complain that the other person is a dog. After all, you just want to attract his attention, because the other person is a sunny and high-quality man.