I hunt mostly public land, and here are my suggestions:

1) As others have said, don't tell anyone if you find a good spot.

2) Get as far away as practical from any roads.

3) Try to find an access point that is not used by the public. My wife andI have two pieces of land that border on GW national Forest (overa million acres). The one I like best for hunting is 6 miles from the nearest public entry to the National Forest. Lots of deer because it's just us and our neighbors (and a few friends, etc.) hunting a lot of land.

4) If you can't do (3), above, then get in early and let the latecomers drive the deer to you.

Good luck!