It turns out that your neighbor on the plane/bus/train (or the person sitting at the next table at the coffee shop) is a very, very chatty tourist. Do you try to switch seats, go for a non-committal brief small talk, or make this person your new best friend?
I usually interact as little as possible in public places when I don’t know people. If the person sitting next to me is a stranger and feeling chatty, I might be a little uncomfortable. Only for a few though. After awhile, it wouldn’t be TOO bad. I wouldn’t try to switch seats. That’s just mean, and I’m not that. I don’t know that we’d become best friends, but you never know. I usually just settle for awkward back and forths. Little chuckles, grins. Maybe they’ll notice my slight discomfort. Maybe they won’t. Either way, I can deal. I do like to learn about people, and that is a good way to do it.