Find their food source, and then their bedding area, and set up on the trails between the two. You can fine tune it by finding natural "funnels" or "pinch points"...anything that make the deer go past a certain area. Terrain, roadways, open fields vs. woodlines, rivers, creeks and ponds are all good areas to look for a funnel.
Depending on your area, white oaks are a great magnet. Crop fields also draw them in.
Now is the time to get out there and pattern them and figure out what they will be eating when your season opens up....then its a matter of putting in your time and watching the wind.
Good luck.