Step 6
Remove your finger from under the knot and squeeze the bottom of the knot to form a tiny channel right underneath the knot. That is your dimple. Now tighten the knot carefully to collar by holding narrow end "B" and sliding the knot up. Fluff up the two sides of tie under the knot on either side of the channel. This is the finishing touch to that tiny dimple with the fluffed up sides.