Once again this step is starting with the Open break and Underam Turn from Intermediate 1 salsa. It just keeps coming back!
Do you notice that both the leaders and followers are keeping one arm up high when they are facing towards each other? This is not just for styling but it helps to prevent both leaders and followers from swinging their weight back onto their heels. A good way to remember this is to imagine that you are creating a window frame with your arms and looking at each other through the window. Peek-a-boo!