A quote: »the key that has always made this dance so wonderful is the flirting that dancing couple can do on bars 9-10 and 13-14 ; <...> if you actually set to your partner, advancing and at the last moment just slipping in BtoB to face and turn the appropriate corner, it's tremendous fun. The moment is all too rare, as apparently few teachers teach it this way, but it's a moment I savour.
2 chords. On 2nd chord 1W crosses down to R of P, 2W moves 1 place up and 2M crosses to her place, so 1c faces 2c across.
Notes: The RSCDS prescribes a 4c set, but the tradition is a longwise set 'for as many as will'.
3C Chain Progression was earlier known as Chaperoned Chain Progression
Note: on  the original says »RH«, but »BH« is widely used.