Start: Stand with your legs shoulder -width apart. With two hands, hold a dumbbell against your upper chest, just under your chin. Bend your dominant knee about 90 degrees so your foot is halfway between the floor and your butt.
Finish: Bend your other knee and squat down until that thigh is parallel to the floor. Keep your torso as upright as possible throughout. Finish the set, then repeat with your other leg.