If you plan on making a brush blind I'll give you some advice.
I would suggest you set up in an area where you know exactly where the animals are moving and adjust wind etc.
Be able to see whatever it is you are shooting in TWO small spots. I usually have a shooting hole about a foot in diameter and I clear a small (very small) amount of brush away so I can see another spot on the trail. It might be good to do it on both sides of you so you can see whats coming.
As previously stated, make sure you have a good back drop and only move your eyes. If you think you hear somthing behind you, don't turn around. It's probably already suspecting something if there is any wind.
Keep your bow in an easy access spot as you would in any tree stand.
Tell us the story about how you saw 'em flutter their eyelashes at you!
Good luck!