A1: Men right-hand turn. Do-si-do opposite.
A2: Women right-hand turn. Do-si-do partner, keep facing.
B1: Two chassées sideways to change places with other couple (women going inside); two-hand turn partner halfway. Same.
B2: Circle half (3 bars), acknowledge opposite. Cross-hand turn partner 1½ and face a new couple.
Some people put in objectional (to me) moves in this, so if you want the band to play I'd much prefer you to call “Beyond the Waterfall” instead. Colin Hume.