[youtube https://www.youtube.com/watch?v=5tvN9zW1OG4&w=560&h=315]

The cross point of a figure 8 is pointed either down or up and the angle at the cross point is stretched to 90 degrees.  Either the left or right hand is leading the figure 8.  Whichever hand is leading bends up to floor plane (45 degrees at the cross point) while the trailing hand becomes the leading hand.