Grunting, rattling and tree stands can produce, but I like to hunt on the move and steadily explore new ground. I consistently intercept mature bucks while still-hunting along rub lines and travel routes. I move quickly through areas of poor visibility and gear down where I can see decently. I constantly scan for motion. Bucks that are up and walking are the vulnerable ones, but you have to see them and shoot before they detect you or slip from view. When everything clicks you'll have a few seconds to convert an off-hand shot on a walking buck at 20 to 50 yards. In 2001 I shot a 147-inch 10-pointer that walked quietly out of a creek bottom 25 yards behind me. If I wasn't scanning all directions I would not have seen that buck, much less shot him, before he slipped across my back trail into thick conifers.