On the nautical theme, Czechs say "Ahoj" (pronounced "ahoy"). Especially charming because Czechia is landlocked. I have no idea how this came about.

I'm still shocked at Malá mořská víla too.

If you remove diacritics its completely valid BCS and same meaning.

BCS have a word for mermaid/siren though (sirena) so it's Mala Sirena. Which makes sense with the sea right there and proximity to Greece so Homeric legends about sirens will presumably be in the culture.

There's a nice song by Daleka Obala - Morska Vila. That's a first ring.

Makes sense. Maybe it's a bit like how informal English tends to use Germanic rather than Latin derivations?

I've only used it while working customer-facing jobs. Outside that, it's 'ey, yo, whatupdoe, wuzzappenin, but usually just the good old nod.

I use ‘alright?’ far more than ‘hello’

Exactly, there's another one. Another common one along with G'day, wassup, how ye doin?, hiya, wotcher, and all kinds of other things?

Scotland?

Yes. Aye aye, fit like, chiel?

Nae bad, nae bad min!

So, not just Scotland but North East Scotland? (I'm in the shire myself, previously Aberdeen)

The first time I was in Scotland (from the US), the folks I was there to visit though it would be amusing to send me down to the pub below their flat to order dinner for us all. Off I went. But after accusing each other of not speaking English, I realized there was no way I was going to be able to communicate with the guy behind the bar. My friends laughed uproariously when I tucked tail and came back unsuccessful.

Funny thing is, I remember it being as bad in the other direction - first few times I went to Texas with work, almost everyone seemed to struggle to understand me, seemingly no matter how "properly" I tried to speak!

I used to work with a woman from Scotland, and relatively soon we pretty much came to the understanding that I would only understand 1/3 of what she said, but it was okay because she just spoke 3 times as much...

I used to live at the other end of Aberdeenshire, right out in the countryside. I never get up there now. Not even Aberdeen although I plan to visit some time. Haven't been in years.