"Constantly talking isn't necessarily communicating."
-Joel (Jim Carrey), Eternal Sunshine of the Spotless Mind
That was the first thing I thought of when I read your post.
Nowhere more so than in high school did I really learn to hate small talk. It just seemed like such a boring chore to have to go over the same stuff with people who didn't care. Yet, I always found myself asking the same dumb questions that they asked me. Afterwards I would smack myself for facilitating this pointless "social grooming" display, as you called it.
I enjoy speaking, but small talk is reserved for people with which you have nothing in common. Case in point: my relatives. I rarely see them (there are a lot of them) and when I do they ask me these pointless questions. "How's school... How's your girlfriend... What are you going to do for a career.." ARGH it just ticks me off. So I try to look as bored as possible so that they'll pass me off to the next relative.
The worst part about it is that if you refuse to engage in this pointless conversation, the other person will be insulted. Why this is, I'll never know. That is why I think I'm going to have a flask of whiskey on my hip at all times. That way, in case of smalltalk emergency, I can just down it and in a couple of minutes I won't give a ****!
One thing about it... I've always enjoyed small talk with a pretty girl. Something about being attracted to someone makes it somehow easier to put up with all the crap. Although if you get a pretty girl that actually has something to talk about, that is the best.
Although I don't like small talk, I don't necessarily always enjoy talking about the "issues" or topics of importance. Sometimes its nice to talk about sports or women or funny things. It's also always easier to talk to people you know and like. There is a certain understanding that silence is ok. When two people allow a little silence, the general quality of the conversation goes way up. Making a broad generalization, I find that women are much more likely to engage in pointless conversation in order to avoid the "awkward silence" that you mentioned. Guys seem to have a much higher tolerance of silence than women. Not sure why this is so.
You asked for my thoughts, you got 'em!