Heres what I've learned myself.
1. Face it down a trail not across. You'll avoid butt shots.
2. Clear any low branches that can set off the motion sensor.
3. Try a mineral lick as stated above.
4. Try to avoid setting up facing the sun. It can make it snap numerous pics.
5. Have a 2nd sd card that you can switch in the field so you can leave the camera out.
6. Don't be afraid to move it. Remember the camera only shoots 1 direction.
7. Have fun with it!

Can't think of anything else right off the top of my head.