Adrian,
Very sound advice and I'll add a bit more- maybe others have other advice to which was learned the hard way like me!

Be very aware of your surroundings. Including you!

What happens when you are excited ?- You start breathing harder which can cause movement by you! Ever wonder why that bird high tailed it out of there. I am willing to bet it saw something that alarmed it...perirod...and even if you though you where not moving in your own mind and by getting excited and breathing heavier will cause more movement of you chest area. I bet the bird saw that!

Second thing - and you may laugh. I have witnessed birds seeing me blink - even though I have been in head to toe camo! So also try to control that.......

Third thing and it goes very nicely to Adrian's post. If you can always look for a set-up in the shadows. Use that to your advantage. Direct sunlight may cause a glare or glint off soemthing you have brought with you or are wearing. Shadows will stop that!

Fourththing -
Watch for bright areas behind you. Even though you have on good camo - you body may be highlighted from behind! Be aware of that and look for cover to break-up your outline.

Last thing....
Say you get busted but don't know why. Ask yourself why and try to learn from that mistake! Don't move untill you hve figured it out. Will make you a better hunter. Oh I have made lots of mistakes and each time I pondered why. But it has taught me some very valuable lessons to which I have larned and leanred well. And that is the beauty of turkey hunting cause after 20 years I am still learning!

JW