Well you can't keep the idiots out. Those who have no ethics. When I hunt public I'm there early. I park so my yruck is well seen. But you still have those who will crowd you.
One reason I went more private than public.
But then on public I look for those out of the way areas. Tough to get to spots.
It is also why I also hunt alot late season. The dumb birds have been shot. But there are still good birds to be had and far less people.
I also pull tape or may reroute them.
I have hung flashlights from trees very early and that has helped.
But be safe out there.
I will not knowingly ruin someone's hunt if they are there before me.
JW