If you use it on public land in an area you worried you may lose it, turn the flash off and hide it well. A friend of mine places his in an old light weight stump. No flash and can't see it unless you look in the hole!
Pretty hard to keep the sun to its back morning and night. Place them facing mostly north or south. For deer if you know of a community scrape, put it there. Especially this time of year. For your buck travel routes, follow the old scrape lines, use the prevalent wind and set up to see what is using them this year. Put one in those spots you always think would make a good stand site but never really try for one reason or another. Let the camera do the work. Good luck!