1. Know the opening hours of the gym: Be sure to know the opening hours of the gym before going to the gym. Some gyms will be open to the public for a certain period of time, such as non-members or tourists.

2. Visit the gym: During the opening hours of the gym, go to the gym and tell the front desk staff that you want to visit. Some gyms may ask you to fill in a visitor form to confirm your identity and the purpose of your visit.

3. Understand the facilities and courses: During the visit, you can ask the gym front desk or member consultants about the facilities and courses. They can show you around the gym and introduce you to all kinds of equipment and courses.

4. Try to experience a course: If you are interested in a course, you can try to take an experience class. This will help you better understand the curriculum of the gym and the teaching level of the coach.

5. Ask for fitness advice: If you have any questions about fitness, you can consult the coach in the gym. They can give you some fitness suggestions and plans that suit you.

It should be noted that different gym policies may be different, so it is best to know the rules and policies of the gym before going to the gym. Some gyms may require you to wear protective equipment or sign an exemption clause during your visit.