Concentrate around natural or man-made food sources by looking for sign..ie low weedy areas, food plots, feeders, etc. Look around water sources, all of the trails leading to them, if a stock tank then look at the upper end of the drainage leading into it as wells as around the banks with easy access. Food plots and feeders will generally have a large communal scrape on the downside about 75-100 yds back in the brush where deer will stage to come into the food source. Trails leading to and away from a fenceline. Low areas, ditches or creek crossing are great locations to look. Do not spend time look at long distances as you can walk right over a shed and not see it. Bedding areas and trails in/out of those areas are great spots. But most of all, don't waste time looking to early if your bucks have not shed yet.