"Confrontation" is a grey area. Approaching someone with a pistol open carrying might or might not count as "confrontation". If you are open carrying and approach someone to question them about their presence, I think that counts as confronting someone. You may not be pointing it at them, but it will take things to a different level.
Earlier in the thread there were mentions of open carrying on your property as a way to demonstrate to strangers. This method might be effective in certain situations and places, but Im just saying that doing this in every place may not be the most responsible thing to do. I would not approach a stranger open carrying unless its something which had to be done and there were no other options. I can see a few situations where it might have to be done, but most situations should not be resolved in this manner.