A1: All set; turn single. Neighbour two-hand turn, moving out.
A2: Lead neighbour forward and back. Set; ones cast, twos lead up.
B1: Twos cross and cast, ones lead up and turn out to face down. Twos half figure eight up, with a handy hand turn with the ones (same sex neighbour in both B1 and B2).
B2: Ones cross and cast, twos lead up and turn out to face down. Ones half figure eight up, handy hand turn the twos.