Standing posture: eyes look straight ahead, shoulders are naturally flat, arms are naturally drooping, chest is raised and abdomen is closed. Hold your head high, hold your chin, tuck in your abdomen, lift your hips, and naturally hang your shoulders. Feet together in a V-shape, hands crossed in front of the abdomen.

Sitting posture: keep your upper body upright, and keep your legs together naturally to avoid shaking your legs and feet. Sit down gently, occupying two-thirds of the chair, and lean back gently. Knees naturally close together, head straight, chest, shoulders, waist. If you sit up for a long time, you can cross your legs and pay attention to recycling your legs.

Squat posture:

1. When squatting to pick up things, be natural, decent, generous and not secretive.

2. When squatting, support your body with your legs together to avoid slipping.