1. The main thing……..patience. Staying on stand at least four hours at a time unless I'm doing all day prime rut hunts.
2. Laying off the trigger when needed and watching more than I shoot.
3. Wind. Paying as much attention to it as possible, and not hunting when it's primarily blowing in a bad direction. I know it's unpredictable most of the time, but it works for me if I don't get lazy and ignore it.
4. Flexibility. Hunting by treestand, ground, or whatever different method will change it up and keep the deer guessing where I might be.
5. Finally, learning WHEN to shoot. Up until my early twenties, I'd feel entitled to take a shot if a deer was in range. Once I figured that's not the case, the switch flipped and I started taking better shots. Sometimes that means not pulling the trigger or dumping the bowstring at all.