This is very disappointing, I saw not ONE Instructable on how to stealth / sneak / or how to remain undetected. I decided to make one of my own and first Instructable on how to remain undetected!
Step 1: Clothing
Clothing is very very important on how well you're sneaking. Colors of clothing MUST match and also have to match the environment (i.e. you're in a white room, wear white clothing). Also make sure your clothing fits perfectly. Any loose clothing that hangs over your pants is fine AS LONG as you TUCK them into your pants and stretch a little bit to make sure you have enough room to move around quietly. Now the pants, Pants that fits perfectly fine around the waist and extra clothing that does NOT go over your shoes is perfect, but make sure its not too tight around the legs and butt while you're moving. Heres the most difficult part on sneaking, SHOES! You must always relay on your shoes while sneaking, but finding the right shoes may be rather difficult. For example GRIP shoes are UNACCEPTABLE, They make too much noise and also cannot move across the floor while sliding/moving. Also the shoes MUST fit, cannot be loose at all costs, always tie them TIGHTLY before sneaking to prevent them from falling off! Now to move on how to sneak.
(Note: Sometimes underwear clothing can have a major effect on your pants while sneaking.)
(Second Note: Loose objects on clothing can be harmful unless it matches with your clothing, does not make the slightest noise, and does not reflect light.)