As an introvert, I don’t typically start conversations. And I almost never start them with strangers (unless I’m trying really hard to be approachable). So I’m always taken by surprise and always a bit uncomfortable when strangers start conversations with me out of the blue.
First, they may not know it, but they have actually interrupted a conversation I was already having…with myself…in my head.
Second, I find that to me personal space is more than just physical. It’s aural. And if there have been no formal introductions or good manners have not dictated the talking (as in the cases of telling to the person behind the counter your coffee order or saying excuse me when you bump into someone) it almost feels inappropriate, like when you watch that brief ungloved hand touch in the Kiera Knightly version of Pride and Prejudice and somehow that’s the sexist thing in the whole movie until she catches sight of Darcy striding toward her in the morning light after the countess visits her, and then they ruin it in the American version with that stupid sappy tag on the end with them sitting outside by the reflecting pool at his house…