FORMATION: line of 4 couples (either gender facing each other, i.e. 4 men face 4 women)
Part A
1s Sharp side, then set and turn single by left. (men turn left, women right)
Repeat with remaining three couples, then turn once and a half to reverse the way you came.
Part B
Like Part A, but with arming.
Part C
1s start a grand chain throughout the set, alternating hands with other couples' partners. When you reach the end of the line, use the same hand in the chain.