Depends on who the person is. The fanatics shun them like they are Df'd and ones like me treat them like a human being and say hi and engage them in a conversation.
I once got so pissed, a "supposed" regular pioneer in my KH. Another pioneer has a daughter who was inactive, did nothing wrong and the daughter who is a young adult went up to the car group to say "hi". This *pioneer* would not even look her way and acted liked she murdered her family member. People really need to realize if they are not God and should not judge.