Situate the tie so end "A" is longer than end "B" and cross "A" over "B".

Bring "A" up through loop between collar and tie; then back down.

Pull "A" underneath "B" and to the left, and back through the loop again.

Bring "A" across the front from left to right.

Pull "A" up through the loop again.

Bring "A" down through the knot in front.

Using both hands, tighten the knot and draw up to collar.