If I am able to physically scout, I'll do as others have mentioned and spend time listening from roads (high vantage points). If mountainous terrain, look for saddles and wide legs as a starter. Walk log roads if possible, just try not to bump turkeys if you know they are in the area. The biggest advantage to me is knowing the lay of the land....it can sometimes make or break a hunt.
If going to an area blind hunting with no time to physically scout, I'll study a map of the area and lean towards a larger chunk of ground preferably not cut up by roads or multiple access points. My thought is might be less turkeys, but you usually find less people which is a plus.