Walk The Dog
Walk the Dog is a footwork maneuver where you put front foot in the middle of the board, then step to the nose with you back foot, do a 180 pivot off the nose so the nose is now in back, while keeping your front foot in the center of the board. This is usually done multiple times in a row and should be done with a smooth tempo. Walk the dogs can also be done backwards.
Walking the Dog appears easy at first glance, but it actually takes a lot of practice to do it fast and smooth. It is not unusual to bail hard when first learning it. There is a certain finesse, to the weight transfer and it can be a little deceiving at first. The best approach is practice at the speed that you can do it smoothly, even if this is very slow. This can actually give the illusion of speed.
Mike Osterman's freestyle trick tip.
And Keith Butterfield's trick tip.