jpv
http://www.amazon.com/Great-Train-Robbery-Michael-Crichton/d...
Smoking has a bit of a culture - when you're smoking somewhere, and someone else is smoking, that's something you can physically talk to them about. You can saunter up to them and say "Virginia blend, eh? Never tried that" and you immediately have a conversation, provided they're not an asshole. It can be something that brings a group together: "Hey lets stop watching this movie and go outside and smoke." And it is very social: it's tough to NOT talk if you're just sitting around with some guys smoking. It can also just be something to do with your hands - for me, at least, it gets rid of the anxious foot-tapping or knuckle cracking and lets me just sit back and smoke and enjoy someone else's company.
Basically what I'm trying to say is that today we are caught up by "interactive distractions" rather than actual human interaction. Smoking socially changes that. </rant>