I taught myself to not only look but to see at a young age. A lot going on in a nature walk that many/most people never notice. Not all animals bolt when mankind shows up, many hunker down and hide. You may walk right past them. I walk grids and look for tracks, especially after a rain, learning to identify tracks is helpful when you go hunting.
A pair of binoculars can open up a whole new world if you learn to stay still and watch.
I hunted snakes, lizards, and Frogs before I ever picked up a rifle or bow.