I’m a big fan of humorous, character-driven books about alien languages (we all have our kinks) and Drunk on All Your Strange New Words checks all the boxes. It’s even an intriguing murder mystery, which gives it extra points.
A young woman is specially trained to communicate telepathically with an alien species that has been on Earth long enough to have their own embassy. The trick to this communication is that it makes the human involved essentially drunk, and after a while, they can’t focus on anything because they’re too busy singing or spinning in their chairs or something.
The protagonist is pretty good at her job, not especially concerned with the rules, and when a dead body hits the floor, is in completely over her head while being thrown into the stew of interstellar politics.
Oddly, I recently reviewed another book with a spunky female protagonist who’s in a unique situation that allows her to privately listen to aliens: Axiom’s End. That’s more of a First Contact adventure (and recommended).
Recommendation: Read it. It’s engaging and fun.