I don't quite know what to make of Mr. Berkun yet (1), but I found this article very good.
Indifference, feigned or real, is such a pervasive part of North American culture (maybe just here in the Pacific Northwest, I don't know). I forget how surprising this was to me when I first came to the USA when I was 18.
Short excerpt follows, and the full article if you follow the link.
And as I stood there, I started to feel weird. Why am I the only one listening? Even though I knew it was right in the sense this is something alive and real and I can spare at least 30 seconds for that – it felt weird simply because no one else was doing it. Had there been a crowd around any one of these buskers, more people would stop to listen, simply because they could do it without having to stand out.
(1) I've read one of his books, Confessions of a Public Speaker, and thought it was good and worth reading, and I've been reading his blog for several months. Still not sure what to make of him though.