Seems like most big game hunting accidents/shootings I've read about, involved shooting at a moving object that turned out to be another hunter. Still hunting would seem to be a better option. And the one I mostly utilize. Being actually shot at while hunting would be pretty scary to contemplate. Hopefully this doesn't happen to any of us.

Seeing a guy looking at you doesn't necessarily mean he was the one doing the shooting. Get to cover and decide from there.