Thanks to my friend Mark Sampson, my capcam works excellent so that you can see on the videos exactly what I see!
You will have to practice this knot quite a few times, one after the other, then go have coffee and come tie five more knots!
Once you know the "story" I teach you by heart, try to tie at least one knot a day for a week. It will help a lot to be able to do these without referring to any reference material.
(The whole channel can be seen by clicking on the little icon in the top right hand corner:)
After tying the knot, you can roll it the same way you roll a round braid between two blocks of wood: