Well, going to a place where you feel you'll find like-minded folks is a totally different scenario than going to a bar with a script. At my coworking space we're next door to a total sales guy that asks, seemingly earnestly, the same damned questions about whomever's life on the other end on every call. I literally cannot believe he actually cares that much though he really puts on a show.
I tend to actually care about other people and to be genuinely interested. That doesn't mean that all chatty extraverts are like that, but someone being different from you is not proof they are just faking it either.
Though for me personally that does create questions of how to balance the fact that I genuinely care with things like time limits and the fact that other people typically care about my welfare vastly less than I care about theirs. The fact that I tend to genuinely care about other people has gotten me taken advantage of at times. I am more careful these days about trying to vet people and make sure they aren't all "Yay! Freebies! This dumb bitch is just giving it away and I am going to take all I can, as long as I can, then disappear if she expects something in return."
I won't lie, I wish I had that talent...