The Seattle Freeze
Recently, a transplant to Seattle sent me this 2005 article on that city's standoffish personality and assures me that the "Seattle Freeze" is alive and well.
I've taught workshops throughout the United States and encountered a real contrast between places like Seattle (which, don't get me wrong, is a marvelous city) and places like New York, New Orleans, Miami, Houston, and Los Angeles. I found New Yorkers, contrary to the stereotype, to be quite friendly and I seldom taught a workshop down South (or L.A. for that matter) without being invited to lunch.
The sociologist in the article has a theory on the reasons for The Freeze but I'm not sure if it contains the answer.