Next, he opens his right shoulder to create space for her so she can step back with her right foot after pivoting on her left foot. As she moves, he moves rotating his upper body to his right and bringing his left foot at a right angle to her pivoting left foot. So he locks his right shoulder, places his hand firmly on her back, and stops his rotation. She responds to this lack of space to move by not moving, so the dancers are now in what is called a Parada. This is one of many simple examples of how to use acquired knowledge to modify set patterns, to alter a movement, to make a decision on the spot and to continue dancing with flair, fluidity, grace, elegance and poise.
Improvisation is what leads to fancy dancing on a crowded floor.
We will continue next time, but in the meantime see if you can improvise your next step trying not to forget which foot you both stepped with last and how are your bodies aligned at this point.