1-8
: 1s cast behind lines, turn outwards & cast back up to 2nd place (2s step
  up 3-4)
9-16
: 2s set & cross passing RSh & stand for 4 bars **while** 1s stand for 2
  bars, set, cross RSh, stand for 2 bars **while** 3s stand for 4 bars,
  set, cross RSh (2) (1) (3)
17-24
: All chase clockwise 1/2 way, 2L & 3M pull back LSh for 1/2 reels of 3 on
  the sides (1M up, 1L down, LSh to 3rd corner to start) 1s end
  facing 1st corners)
25-32
: 1s dance 'Hello-Goodbye' to end with Petronella turn to 2nd place facing
  out.

{{explanation}}
Note: at start of 3rd time through, 1s cast to 4th place, 4s step up