Page 44 - Joseph B. Healy "The Pocket Guide to Fishing Knots"

2. Wind the tag end around the standing part five times only. Bring the

tag end back through the double loop in front of the eye.
3. Moisten and tighten carefully. Instead of letting go of the tag end as
you would when tightening a Clinch Knot, it helps to hold the tag end
tightly against the fly.