clear anything that can be blown by the wind away from the front of the camera. Try and not angle it towards the sun as I' ve heard (never happened to me tho) that can set of the shot. I' ve also heard that you shouldn' t place the camera facing " down a trail" because you run a risk of getting a really far away shot and never having the animal approach. Watch your height, if you have your cam too high you' ll get a head and no body, if you have it too low you' ll get feet and no head, etc... everything else is just common sense. I try and picture an animal in places X Y Z in front of the camera and think how I' d want the camera if he were standing there, " On this tree will be too close, this one will be too far... that one looks good."
On pointing the camera " down trail" I got this nice pic:
www.scofield.cc/GameCamPics/deer1.jpg
I got lucky tho because that was the 3rd one in the set, he was walking from behind the camera (guess the smell didn' t spook him) and got one shot, he came back to graze in the same area, got another shot and then he got curious and looks like he walked up to the camera...