Drape the ascot around the neck, with the ends in front of you, as shown. One end should be longer than the other.
Cross the long end of the ascot in front of the short end.
Tuck the long end up behind the short end, pulling it up alongside the chin.
Pull the long end all the way up and through, straightening the ascot around the neck for a snug but not uncomfortable fit.
Lay the long end back down in front. Ideally, the two ends are roughly the same length at this point.
Straighten and pull the two sides of the ascot wide for an even, tidy look.
Tuck the ascot back into your waistcoat. You’re ready to go!