For the Unbuttoned Man: "Whether silk or cotton, they tie the same. Lay it flat, fold it diagonally, roll it tightly and, slipping it around your neck, tie that Boy Scout classic, a square knot... Whatever the neckerchief is, there is one thing it is not: an ascot. 'We don't use the A-word,' Mr. Burke said. 'This is not about Thurston Howell III.'"