Step 1: Take a Trail-Cam Inventory of Bucks
I'm not wild about the popular use of the term "inventory" here, as if deer were a commodity on the shelf, but for better or worse, most of today's deer hunters know what it means: a trail-camera head count of the bucks using your hunting area. You're not patterning bucks at this time; you're simply confirming that they exists. To do that, you need to point your cameras at specific spots where deer congregate and will stand still for photos. Good bets include a mineral lick, corn pile (where legal), or a small, secluded water hole. Get lots of pictures, then count up your bucks and identify the one(s) you want to target when the season starts.