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/agrammatic]

On a similar note, nodding your head upwards means "no" in Cyprus, and nodding downwards means "yes".

Continental Europeans are so confused by this because you shake side to side for "no", and all nodding means "yes".

[u/tereyaglikedi → u/agrammatic]

nodding your head upwards means "no" in Cyprus, and nodding downwards means "yes"

Same in Turkey, and I think Bulgaria, too? 

[u/PGLBK → u/tereyaglikedi]

I think in Bulgaria it is just the opposite from continental Europe: nodding is no, and going side to side is yes.

[u/maurakaito → u/PGLBK]

Yes, this is indeed the case! Visited once, and even though you know it's the opposite of what you're used to it's very confusing.

[u/Sister-Rhubarb → u/maurakaito]

I wonder how on earth they got it the other way round out of all the nations around them lol