Make sure it is not facing directly towards the sunrise or sunset.
Mount it about three or four feet or so from the ground, depending on how the landscape lays. Don't want it too high and critters walk under it or too low and just get leg shots.
If you put any type of bait or attractant out, make sure that you don't get any on the camera when you hang it...bears like their cameras flavored!
If you don't already have one, get or make some type of locking box/cable to protect your camera.
Make sure the batteries are good and you turn it on before you leave the area.