The 1st count is a Setenta. On 7 perform an Alarde and put the arm back down on 8.
On the 2nd count, switch sides twice (on 1-3, and on 5-7). On 1, switch the left hand hold to a "Pizza hold" (like holding a pizza). This should create a "window" from the left. On 2-3, you should place your left hand on your right shoulder and get your head inside the window. Then drop your left-right hold and catch the follower's right hand again by 5-6 from the front.
The 2nd and 3rd Count are end of Setenta Complicado.