For me it is not hard it just takes time, but as soon as something comes in the wait pays off, and it could be more difficult for an impatient person you just gotta find a way to pass time. as you said Some hunters read books i have herad of people listening to music etc.. But you are right it's not physically hard to do but for some hunters that is there way of hunting. Now by saying that you keep moving are you refering to, spot and stalk or just walking through the woods trying to jump something?