From perfect butt to firmer thighs, squats can do the magic for you. To do a basic squat, stand with your feet hip width apart and keep your back straight. Squat down to a 90-degree angle while maintaining a straight back. Try to push your butt back as far as you can and then stand back up. Do not bend your body when you squat. Do a set of three, each consisting 12 reps. Slowly increase the number of reps weekly.