Leg thickness is either muscle or edema. In fact, people with more muscles are prone to edema, just like your legs are swollen after exercise.

If it is a muscle, you can do more stretching exercises and foot pad exercises.

If it is swollen, do more exercise and massage your legs with some oil after taking a shower.

If you want to lose your legs, you can shake your legs more when no one is around. Walking fast, walking fast, is very effective. Don't cross your legs

Tightening the calf is useful.