As long as you don't make them feel uncomfortable, they will hang around and get amazingly tolerant of the close proximity of humans.
A couple of months ago I was replacing some screening on the vents on the crawlspace of our house and had one that was about elbow distance from me just watching what I was doing. We have a pretty good population of them around here this year and see them sitting on the sides of trees pretty often. They pretty much just ignore us walking by. But we talk to them anyway.
