How to tie a Rolling Hitch
Make a turn around a pole and bring the end up on the right side of the long standing part.
Now take the end across the standing part and make another turn around the pole.
Make the third turn beside the second and across the first.
Tuck the working end under the third turn.
Pull on the working end and the standing part to tighten the knot. Take the standing part over the first and second turns before applying strain to the rope. Note that it will only take strain in this direction.