HALF WINDSOR
Situate the tie so end "A" is longer than end "B" and cross "A" over "B".
Bring "A" up around and behind "B".
Bring "A" up.
Pull "A" up and through the loop.
Bring "A" around front, over "B" from left to right
Again, bring "A" up and through the loop.
Bring "A" down through the knot in front.
Using both hands, tighten the knot and draw up to collar.