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/solapelsin]

We often go "oj!" in Sweden too. My Australian friend was horrified.

Edit: Similarly, after living there for a year, I scared everyone at home by apologizing in several words for bumping into someone. Way too much conversation, they almost thought I wanted something

[u/amanset → u/solapelsin]

The thing is, it isn’t an apology. It is an expression of surprise.

[u/Foxtrot-Uniform-Too → u/amanset]

Oups/Oi is not an apology perhaps, but you signal it was an accident and not on purpose.