I scout year 'round. I see a lot of turkeys and turkey sign while late season deer hunting. A week or two before turkey season I go back to make sure they are still in the area. A day or two before the opener I go in before daylight and listen for them to fly down to be sure they are still roosting in the same spot. Then I get out quickly and quietly! At this point I do nothing (no calling) to educate them. Slip in early opening morning, set up, and listen. When they fly down, I give them a few subtle clucks and then sit quietly for a while. Sometimes they come, sometimes they don't, but I'm a firm believer too much calling is usually bad. If they don't come, I go to another spot and try the same routine. I do not attempt to get closer to a bird that has started to come in then "froze up". I would probably spook him, and the next time he will be more reluctant to come. Others may disagree, but this system is what I like.