Maintain proper form at all times, even when fatigued.
Perform techniques correctly, smoothly, gracefully, and forcefully. Basic moves performed well are the secret of success.
Use your eyes
Defocus eyes so as not to concentrate on any one thing. Slightly crossing eyes may defocus them so you see the whole picture.
Keep eyes open and the opponent in view.
Look through the opponent with a piercing vision.
Learn not to blink when attacked, use feints to opponent’s eyes to make him or her blink.
Keep your eyes on your opponent's upper chest. Do not watch your opponent's eyes or head. It is easy to fake with eye movements and head bobs. A common technique is for the attacker to look in one direction and move in another. The upper chest controls the arm muscles of your opponent's punches and is crucial for balance as he or she attempts to kick. By watching your opponent's upper chest, you will "see" punches and kicks before they begin.
Keep teeth tight to prevent injury to jaw when it is hit.