{{explanation}}
All couples form big circle facing in, M on L of W.

1–
: All facing centre A&R ; set | set to P
9–
: All turn P RH ; repeat LH and finish BtoB with P, M facing clw
17–
: G-Chain, 2 bars/hand, 4th hand is with new P, M making polite turn
25–
: All Circle L and R