Stand tall, shoulders back, head up and set feet to shoulder width. Hands on hips. Now push hips back to a point almost where toes raise. This will bring upper body forwards towards feet. Counter-act with very small knee flex. Allow arms to hang into space around centre of feet. Weight should feel in middle of feet, back straight, head off chest. The Great Andre Agassi withing to receive serve, is a fine example of perfect posture. Weight evenly distributed, balanced and ready to go!