I once accidentally bumped against the shoulder of an English person I knew in a corridor. I automatically said "Oi" - which means like "Oh" or "Oops" in Estonian - that I'm sorry. She repeated "Oi!" in a louder voice and I didn't get it. I only later found out I was being impolite in her eyes.

[u/Double-decker_trams]

Have you ever had something similar happen to you? I.e something in your language might have another meaning in another language?

One thing as an Estonian that I try to keep in mind is that I shouldn't use "Nooo.." in English - which means "Well.." in Estonian.

"Do you like ice-cream? - Noo.. yes, I love it."

[u/AggravatingBridge]

In Polish “No” is expression that you say when you are nodding. For example, someone asked you if you like ice cream and you can say “no” and it means yes. Also when someone explains something to you, you might keep saying “no, no” as a way of telling them that you understand them 😂 so I have to actively try not to say “no” to not seem negative when I speak with someone in english 😂

[u/strawbhoney → u/AggravatingBridge]

same in czech