I am going to describe what I do... Poorly...
start your box knot with the strands over lapping each other but do not pull it tight.
take your ends and put them through the loops made from he previous step. go from the outside of the loops in. if you pull it all tight from there you should have something like this:
start your box knot with the strands over lapping each other but do not pull it tight.
take your ends and put them through the loops made from he previous step. go from the outside of the loops in. if you pull it all tight from there you should have something like this: