Create a calorie deficit through diet
Eat more protein
Reduce refined carbs and sugary foods
Increase daily walking and overall activity
Do strength training for legs and full body
Do cardio workouts regularly
Include interval training if appropriate
Train glutes, hamstrings, and quads
Build muscle to improve thigh shape
Sleep enough each night
Manage stress levels
Stay consistent over time
Drink enough water
Limit alcohol intake
Track progress with measurements and photos
Be patient, since spot reduction is not possible