Hold the tool with the single cordovan stitch on top.
Say:
"Go from front to back through the next hole.Leave a loop in the lacing.Go from front to back through the loop.Keep the tip to the left as you go through the loop.Tighten the loop first, then tighten the rest.Make sure the lace isn't twisted.Please make three stitches"
Release the tip and let the lacing fall down the back.
"You have the first part right.""Look at how you are going through the hole.""Is there another way you can go through the loop?""Is there another way you can tighten the lace?"
After about three minutes, does the person complete three single cordovan stitches correctly?