This fall as I approached one of my stands through a particularly thick leaf litter I got inspiration as I paused in my slow but non stealthy approach, a grey squirrel! I watched and listened as he passed me by and then I mimicked his sound as I continued my approach. It worked. I finished my final 100 yard approach with a decent 8 point buck not 45 yards away from my stand out in the cut corn. Likely my ghillie suit helped as well, but my noise did not spook him. With each step, I would take two or three mini tap like steps with pauses in between.
Ironically on that same day, my brother, who was hunting on the opposite side of the property came up with his own method. He ran into his stand. With-in minutes of pulling up his bow a fork horn ran right up to his stand.
Makes some sense to me as deer are not accustomed to hear humans running in the woods.