Stand with your feet slightly wider than shoulder-width apart, hands clasped in front of your chest.
Hinge at your hips and bend your knees to lower into a squat, keeping your chest tall. Pause at the bottom of your squat, with your thighs parallel to the floor or as low as is comfortable.
Pulse your hips up a few inches, pause, then lower back to the bottom of your squat. That's one rep.
Do 15 reps. Do three rounds total, alternating with Exercise 1 in this superset.