Natty movement will get you busted quicker than anything as you say, when I was about 14 in the middle of the summer I am walking down the edge of a field with a rifle in hand to go pop a groundhog when a doe stepped out into the field not 10 yards in front of me! I froze and put my eyes down to a slit. I was wearing a white t-shirt and cut offs. She stared at me for quite a while, turning her head this way, then that, she stomped her feet at me several times trying to get me to move, I stayed still even as my sweat was burning my eyes like fire. She took about 3-4 steps toward me, stopped, stomped, stared, turned around and clamly walked back in the woods the way she had come, the whole time she would stop and turn back to look at me! Once she stepped in the woods I switched the gun from one hand to the other, she took off like a bat out of hades!!!!

Good camo will allow for a minor mistaken move, but that is it, being still is far more important than camo.