The deer will do what it decides to do. Be as quiet as you can, keep your bow quiet,(brace height, catwhiskers,etc.) and don't make a move after the shot. Do NOT get down, wait an hour if you have to. The deer may circle around a bit if it isn't startled too bad and may be a short distance off. If you spook it, color it gone. A good hit is mandatory as always, but should you make a liver hit, it may need some time to die. Leave it be!!! Dragging a dead deer out of someone's backyard is not something many other neighbors may want to see, and the spot will be gone forever. Nice deer in there!!! Good luck!