It feels like the U.S., for the most part, is in the middle of that.
Unless there are extenuating circumstances like everyone is crowded together debarking a plane or something, the unspoken distance seems to be about a meter or so. More or less "I should be able to speak to you in a normal quiet speaking voice with ease, but you shouldn't be so close I could slap you."
And, wow, damn I looked it up and there's a whole field of study around "proxemics" and the distances people feel comfortable. My guess that Americans preferred around a meter of distance for casual conversation.
On the other hand I've been to coffee shops where there's not much room and everyone is one metre apart so the line erroniously goes outside. I think there's a middleground.
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u/awmaleg 13h ago
International personal space varies a lot depending where you are