The other person kicks lightly . Then same but to the side , doing round kicks . Various reaction drills - two people shuffle sideways - one person leads another has to follow , and the goal of the leader is to confuse the follower - so shift to the left then right , etc . As a variation of that , the " windmill " drill - standing still with your hands waving in front and the other person has to land a reverse punch and get out before being hit .

Question: Why is someone kicking lightly ?
Answer: They are training martial arts .None of the above choices .Two people are shuffling sideways .The leader is trying to confuse a follower .