Buy them here-
http://www.arrowmoc.com/index.html
I have three pair. They are invaluable. Get the single thickness soles to better feel the ground. Use something else in snow or ice. The smooth, flat soles slip badly in snow and ice.
Quiet clothes, like wool, are best. I leave my Gore-Tex indoors unless it is raining. A walking stick is handy to stop your fall when your balance begins to go.
When you close to near trees don't get too close. Thats where the birds are sleeping.
Stop more than move. e.g. Three steps, stop 2 minutes, three steps, stop 2 minutes. Every five or ten minutes, sit down for five minutes or so. Begin the cycle over. I've had deer, coyote and skunk walk by me while I'm sitting, without knowing I'm there. Don't pass up the sitting.
If you make a noise freeze for 30 seconds before moving on.
Believe you ears more in the night. If you think you hear something you probably do. Amplify your hearing by cupping your hands behind your ears and scanning. The cupping provides a very noticeable directional hearing increase.
Doors are a big giveaway. They are noisy. People tend to not begin to practice sound discipline until they are outside- and have loudly shut their door. When you hear a door, cup your ears, rotate to locate the proper direction and realize that a person or dog/cat is now outside with you - and you know they are there but they don't know you are there! When you go in shut the door quietly.
Dye a few of your hankerchiefs black/grey/olice drab. But try to develope the discipline to not use them, or slap bugs, when you're on stalk.
Take care,
bug