The bar should be over mid-foot, your shins should be an inch or two from the bar, and your feet should be hip-width apart, with toes pointing slightly out.
Lean forward and grab the bar with a double overhand grip.
Bend your knees to position your shins against the bar. Simultaneously, retract your shoulders to straighten your back.
Take a breath.
Initiate the pull by digging your heels into the floor.
Lift the bar in a straight vertical line, keeping it close to your body.
As the bar passes your knees, begin to extend your legs and drive your hips forward to complete the repetition.
Begin the descent by driving your buttocks back and keeping your back neutral.
Lower the barbell in the same vertical line, exhaling near the bottom.