1. Keep the correct posture: keep your feet between shoulder width and hip breadth, and turn your toes slightly outward. The barbell bar is located about two fingers away from the calf.
2. Grip: Hands droop naturally and hold the barbell bar. The grip distance can be fine-tuned according to personal characteristics. Keep your hands close to your legs, but it is advisable not to rub your thumb against your legs when pulling hard.
3. Keep your back straight: Keep your back straight when pulling hard, and don't bend your waist or neck.
4. Keep your knees slightly flexed: keep your knees slightly flexed when you pull hard, and don't bend or straighten too much.
5. Keep the center of gravity stable: keep the center of gravity stable when pulling hard, and don't shake or be unbalanced.