rereading this thread reminded me of one bit my personal technique for stealth stalking...
i use a counting system when walking in the woods..i am always counting my paces (every second step)...every patch of woods gets a rating of how many paces i will take before stopping and doing a complete look around....the maximum number of paces i will do (when in hunting light even on a road walking back to camp etc) is about 20...once in awhile i might find myself at 25 or 30 when my mind has waundered but i will then stop and survey the surroundings...
even when game is spotted i will still try to do a look around every few steps on my approach...
this is also helpful to avoid overheating and getting out of breath