Generally, regular coaches don't touch breasts and private parts because they don't involve exercise and stretching in these parts. Touch the buttocks with one finger, the abdomen with three fingers or the front palm, the shoulders with two fingers, and the back with the palm. The normal operation process is to directly contact the members' bodies with towels or pens. Fitness instructors mainly demonstrate movements and plan your diet and training plan. Why do you need to touch your hands? If you see that your movements are not standardized during practice, he can give you his own body movements without physical contact. In daily fitness, we must pay more attention to whether the fitness instructor has ulterior motives, continue benign contact and stay away from bad decisions.