Café de Nuit

While I started my campaign with 4 Darkonese characters my players reached the tropical island of Souragne where they meet a new player. They guy plays an aristocratic character from the Von Schelm family. Thanks to the Guide to Souragne that everyone can download here, I gave my player the lexicon with words and terms used in Souragne. (I also allowed him to speak a bit Darkonese, which he learned from books (trading with darkonese merchants happened very occasionally)

I enjoyed the fact my new player used the words from the Lexicon and brought the feeling I wanted to create over to the other players. What is the marecage he was talking about and what the fuck is a crocrodile :p).

I was wondering if other groups with characters from different domains use those lexicons or if they just speak and understand each other without problem?

Generally my players haven't even delved that deep into the setting so most of the talk around the table seems to go just as normal talk, nothing special. Though I should probably introduce a bit more of it into my game I think.