1. Insist on aerobic exercise: running, brisk walking, cycling and skipping rope are all aerobic exercises, which can effectively consume body fat and make leg muscles firmer.

2. Insist on strength training: It is a good choice to use dumbbells or weights for static or dynamic leg training, such as squatting, stepping and lift heel, which can help to increase leg muscles.

3. Control diet: Pay attention to a balanced diet and avoid foods with high calorie, fat and sugar. Eat more fruits and vegetables, low-fat, high-protein foods to ensure that leg muscles get enough nutrition.

4. using massager: using massagers such as massage balls or rollers for local massage can promote blood circulation, relieve muscle fatigue and tension, and also reduce leg edema.

5. Pay attention to posture: the correct posture can help shape a good figure. When standing, keep your legs together, put your hands on your sides naturally, and don't squat or tilt your heels too much.

It should be noted that everyone's physical condition and requirements are different. If you want skinny legs, you'd better find a professional coach to guide you. At the same time, losing weight also requires long-term efforts and good living habits.