a pretty good idea for not spooking deer
i was watching a show, where as this guy got in the woods, he would walk on his heal, than put the front of his foot down, and keep doing this, he was trying to sound like a deer walking and he did.
He said if a deer is near by and hears this he wont spook, cause it will sound like another deer, after a bit of practice you really do sound like a 4 legged animal walking.