1. Enter the gym: First, you need to enter the gym in the game. If you haven't been to the gym, you can find its location by navigation or map.

2. Choose exercise programs: Gyms usually offer a variety of exercise programs, such as strength training, aerobic exercise and yoga. You can choose the right project according to your own interests and needs.

3. Start exercising: Once you choose an exercise plan, you can start exercising. Each project has its own exercise requirements and goals, and you can follow the prompts.

4. Record your progress: During exercise, you can record your progress, such as the amount of exercise completed and the calories burned. This will help you understand your exercise effect and make a better exercise plan.

5. End the exercise: When you finish the exercise, you can leave the gym. Remember to record your exercise results for future analysis and improvement.

Please note that the story of toffee is a game. In real life, we should pay attention to safe and correct methods in doing physical exercise. If you want to exercise in real life, please consult a professional fitness coach or doctor first.