Shun the extravert. SHUN!
Seriously, though, I guess it depends on the question. If it's something nuanced and interesting to me that I have an opinion on, I'm likely to launch into an impromptu TED talk and monologue at you until I lose track of time. (God help you if you get me started on whether she exists or not.) If it's something simple like what species of bird that is, you'll get probably the minimum number of words necessary to convey an accurate answer (or "I don't know").
I hate conversation just for conversation's sake, though. There has to be a point to it. And the point can't just be "conversation." What you're talking about feels too much like "small talk" for my taste.
But also, it takes all kinds. You're not bad or invalid for liking small talk. Just... not necessarily my taste. Heh. Go find some other extraverts.
Also, I don't think your opinion is terribly unpopular at least in more western, individualist cultures.
Does just broader vocabulary count? Maybe it's just a rule that everyone sits down with a dictionary every couple of weeks for 30 minutes just opening it to a random page.
Also, more latin phrases. That's cool shit.