Courtesy turns, also called honoring the judge, are often used by experienced dog handlers during showmanship. The purpose of a courtesy turn is to change the direction of the dog, and allow the handler to line up in a proper line to allow the judge the best possible view of the dog’s gait. While a well-executed courtesy can be impressive, they are not required in South Dakota 4-H Dog Showmanship. Some dogs are not easily directed through a courtesy turn, which could make it distracting rather than helpful.
The Oregon State University Extension Service put together a series of videos for 4-H animal handlers, including the courtesy turn. This video does an excellent job of explaining and demonstrating the move.