Teaching directional commands part 2

This video follows on from my last one where I showed how to initially teach the dog directional commands with him outside of the pen and the sheep inside the pen.
The next step here is to either remove the pen or have the dog inside the pen with the sheep. The same principles apply. The dog naturally moves opposite you in an attempt to balance the sheep to you. As you move direction the dog will also move and you then say that direction. As you both change direction you then say that other direction. "Come by" means go left or clockwise, "Away" means go right or anti-clock wise.