If you want to keep fit and lose weight, especially on your hips and legs, here are some suggestions that private trainers can provide:

1. Increase aerobic exercise: Aerobic exercise can help you burn more fat, thus reducing the fat in your hips and legs. For example, running, swimming and aerobics are all good aerobic exercises.

2. Increase muscle mass: Increasing muscle mass can increase your basal metabolic rate, thus helping you burn fat more effectively. Strength training for hips and legs, such as squats, leg lifts and leg bends, can effectively increase muscle mass.

3. Control your diet: Controlling your diet and keeping your calorie intake low can help you reduce fat storage, including fat in your hips and legs. It is suggested to eat enough protein and dietary fiber, while reducing the intake of foods with high sugar, high fat and high salt.

4. Correct bad posture: Bad posture may lead to muscle imbalance and fat accumulation. Personal training can help you identify and correct bad posture, thus reducing fat storage in hips and legs.

5. Regular work and rest: Regular work and rest can help you keep a healthy biological clock, so as to better metabolize and consume fat.

6. Learn to regulate stress: Stress may cause your body to store more fat. Learning to relieve stress through meditation, exercise and breathing exercises can help you reduce fat storage in your hips and legs.

Please note that the above suggestions need to be carried out under the guidance of professional personal education to ensure safe and effective body shaping and fat reduction.