Too Much Dialogue---Characters Talk Too Much | The Editor's Blog:
Ahhhh, so many good tips here. I’m super paranoid about this now because it seems like my characters talk a lot and I’m worried about it being too much.
This bit was eye opening for me too. *notes to self*
Also, people don’t let other people speak without interruption, and your characters shouldn’t let other characters get away with hogging conversations either. Make characters interrupt and talk across one another. And cut excess words. Get to the meat of communication in dialogue rather than letting characters speak with perfect grammar and diction and with an elegance found only at a White House dinner.