Montana ramblings:
From what I've seen up here is most people who open carry and dress nice are not given more than a passing glance if that.
One guy I know who looks like crap out in public, I.E. dresses in all black, low slung hoslter on his thigh etc. He has had some issues not so much with the cops as far as I know they have never even talked to him. But he has had a few problems with business owners not wanting him their place of business.
I saw a guy in Missoula and I talked to him for awhile about guns and such. He looked like crap, worn clothes, cheap belt and holster etc. He travels the western states alot and has had only one negitive encounter. This was with a kid clerk in a 7-11 type store. She freaked, he talked to her nice and left when she asked him to.
So I guess I'm trying to say if you look "normal" dress nice you probably won't have a problem. I don't open carry in town but I do out in the boonies.
In 44 days when we move home to Co I don't know if I will open carry in the woods or not. I had more encounters with moonbats in Colorado than anywhere else I've ever been. I don't need the hassle so what they don't know won't cause me any problems, most likely I will just carry concealed.