[quote=@Antarctic Termite]
<Snipped quote by Mokley>

Applicable for all languages, or would characters who know more than one language make themselves understood using their first or most comfortable language while other languages need interpretation? Relevant for multilingual characters who would pick up on the fact that other characters understand them no matter what they're speaking in.
[/quote]
I'm not entirely sure I follow the question? Let's say two characters speak Japanese, one is non-native and not as good at it. The non-native speaker listening to the Japanese speaker might get a clearer and faster understanding than they might otherwise have. The Japanese speaker listening to the non-native speaking broken Japanese would still understand what's being said but [i]might[/i] still focus too hard on making sense of the word structure and thus override the efforts of the mechanism.

In other words .... play it however you like. ;)