When sidestepping an attack, wait until the last split second to move. If you move too early, the opponent may follow you with the attack. If you move too late, it is too late to move. It is a fine line.
Never take your eyes off your opponent. Never turn your back to an opponent. Avoid turning your back to judges, because they cannot see your points.
Develop a "poker face" when fighting, that way you never telegraph your intentions through facial expressions. Never show fear, its builds your opponent's confidence. Try to look relaxed and confident, it makes your opponents nervous, which will affect their fighting ability.
If it worked once, it will probably work again, but do not over use it.
Do not hesitate to back up when required.
A calm mind is built through meditation and a lot of sparring. Maintain a calm mind, because it: