I first saw this loop knot on the IGKT forum (posted by Enhaut).
It makes a lanyard, zipper pull or key ring fob.
Here is the step by step procedure.
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Bring working end (WE) to the left making a small bight.
Bring WE under standing end.
Bring WE down to the left over the bight.
Bring WE around to the right making the loop for your lanyard.
And up through the bight.
Bring WE to the right.
Then bring WE up through the loop.
And down through A.