So, some fanon holds that the nations communicate in a universal language not shared with humans. I'd like to see something inspired by this. Specifically I like the idea of their language having colloquialisms and sayings which nations understand perfectly but which don't translate well into human languages. Or convenient single-word translations for concepts they encounter more often than humans do, which they accidentally use in front of a human. Or they have songs in the nation language which they don't share with mortals. Just little things like that. Bonus: appearance of Narrator Lady.