In this video observe how one step is done in different ways. Take a note of how the hand, head and the body moves as we go forward and sideways.
The Bols for the second variation is Tai Ya Tai Ya , Tai Hi Tai Hi. It is very similar to the first variation. Each step is done twice in the second variation. The Bols of the third variation is Tai Ya Tai Hi. Read the explanation of these steps here.