This is the main movement (Mae Mai) of Muay Thai for training to defend the fists by alternating the feet and pushed the arm out. The opponent’s fist would passed over the shoulder. It’d make clear targets in order for you to attack as you wish. (The same movement as Kon Pak Sa Waeg Rang)

The attacker hit with the right fist to the opponent’s face and holds on the left hand guard.

The defensive steps the right foot for words, the weight on the right foot and teeps looking at the opponent. Then throws the straight left punch with the swinging shoulder and push to the inner part of the arm away, lefting the opponent’s fist passed over the head. Then you can counter by using all parts of body such as right fist, right elbow, the left foot or the left knee. If the attacker throws with the left fist, do the same as above in the opposite directions.