A DVD-capable laptop is always a nice toy to bring. It's also useful during meals, on the plane, or even late in the evening in your hotel room, to repel boredom. The geek party was on the second floor. Down The Social Scale Homeless people abound in downtown San Francisco. Practically everywhere you go, there is a creative and enterprising individual trying to talk you out of some spare cash.
People go into aversion mode, in reaction to the constant barrage of beggar come-ons.
I found myself putting on a game face as well. My Overall Assessment MacWorld seems to be more for users and not so much IT people. Some sessions were valuable, but most of the sessions and booths seemed geared for people with less in-depth knowledge of the OS from an administrative point of view.