From an education book I'm reading, which will be discussed more in depth later this week:
...I have that New England thing. In New England, if you're in a public place and there's someone else there whom you don't know, it's polite to ignore them. Whereas, in other parts of the country, like in the South, if you're in a public place and there's someone there you don't know, it's polite to maybe introduce yourself to them, say something nice to them. So, I have more of the New England model.
*Polite* to ignore them???
I've just got to get out of this state!