It has been my experience out in the field, that the Bigfoot/Sasquatch subject is a very, very cautious individual, but at the same time, their curious nature can also be their downfall. They will keep their distance, even more so if you are openly carrying long guns. They know what these items can do.
If they detect suspicious activity (i.e. bate and trap locations, tracking or herding them etc.) they are usually out of there never to be seen or they harass you from a safe location.
Just camping out in areas of known activity can and will draw them in close to observe. Land owners have in the past established interaction with them, sometimes good, sometimes bad and a few really, really ugly situations.
In short, they are not a dumb animal from my experiences out there. They have a level of reasoning and cognitive that gives them a big edge with the keen senses they possess. They usually will keep adistance and avoid detection.