1-8
: 1s lead down middle, cross over & cast up to 2nd pl **while** 2s set &
  cross RH to 3rd pl **while** 3s cast up to 1st place & cross RH, all
  turn RH (3)(1)(2)
9-16
: All Set+Link for 3 once, Men dance RH across **while** Ladies also dance
  RH across
17-24
: 2L+1L+2M also 3L+1M+3M dance 1/2 reel of 3 across (1L RSh to 2L & 1M RSh
  to 3M to start), all Set+Link for 3 onto sides
25-32
: 1s dance Diag R&L (M down) to end 3 1 2 4

{{explanation}}
2nd time through, ends 3 4 1 2, 1s step to bottom & 3s become new 1s