|This knot is simply taking a turn around the post and
then making two half hitches.
Start by wrapping the rope around
the post for two complete turns Pass the working end over and around the
standing part, then feed it between the post and the standing part.
Bring the working end away from the post and make another wrap
around the standing part, again feeding the working end between the
previous wrap and the standing part. Pull on the working end and cinch the
knot up to the post to tighten