Keeping your mind occupied is the big trick ,
I don't take books because it distracts me from watching for the deer . Ditto on video games , too distracting . I focus on the world around me trying to identify each sound and guess it's distance . I watch squirrels and other game as they go by oblivious to my presence , and make a mental note to return when they've fattened a little more and deer seaosn is ended . I scout the terrain around me to memorize every rock and patch of cover . While this is going on I try to tap into the vibe of the woods around me and meditate until I feel like I'm one with it . Time goes by fairly easily when I can do this .