Depends on the weather/climate for the year, but very generally I would be at treeline wherever I was hunting. Glassing open expanses and the edge of timber, and diving into the timber systematically to check for sign. If there are lots of hunters (assumed because you are talking an OTC tag)...
There is more to it. Homework and fitness at the front end; patience and hardwork during the pursuit, and experience throughout are all important. That said, I didn't take a shot this year in 7 days out in Colorado.