Depending on the area and amount of hunters... I pull in early and wait around, I might meet some folks and ask them where they are going...
Other than that, I pick a spot and hang tight.... If I don't kill a bird or set up wrong, I go to the nearest parking spot in my truck and relocate that way. Guys walk a long ways sometimes when they don't know where they are....
Here's an example, way late in the Fall season, I grabbed 12 guage and head out to a spot where I have seen turkeys crossing a creek... I set up and a guy put his flash light on me from a treestand!!! I asked him where he had come from since there wasn't a truck at the spot, he said he walked from the highway.... Its 2 miles away....
So, we chatted about that and he decided he wasn't real smart... then he said, "you don't spook my deer and I won't spook your turkeys//"
1 hour later I lit that 3.5 off and killed a bird about 250 yards up stream...probably scared that guy clean out that stand...