Ah! I didn't know that

I'm going to read more about it soon then...
Anyway, I was referring to the notion that
anything we do can
unintentionally communicate something to other people:
even if I'm peacefully gazing at the stars and contemplating the beauty of the universe, some dude around me could perceive me as being depressed or trying to avoid social contact [, and consequently will avoid me or take up whatever attitude might be programmed in him, etc. etc. etc. etc. etc. I hope you know what I mean.]
You're right: perfect communication is impossible, and I've learned that well especially because I've often lived in different countries; a body language hint here can mean something
totally different somewhere else!
Yet, we can at least attempt to bring us closer to themselves by communicating in their language, by making their language part of ours as well, by being flexible in the way we express ourselves.
That's usually the job of diplomats or interpreters... (alas, I'm an interpreter).
But communication differs even within subcultures, within age groups,...
I'm simply saying that some people can really get angry or think you're avoiding them or being arrogant when you're not even
thinking about anything as such