One of the main problem I have with my first drafts is that my characters say too much. They will either say nothing, or say what is on their mind. And oftentimes, it will be stated clearly.
That's, of course, completely unrealistic. It helps to get the story moving, to play with the characters and what needs to be said, but in the end I don't think it should this way. That's not how it happens in real life. Most people I know will say one thing, and mean another.
This is not easy to do in a novel, because you have to make sure your reader understands what is implied. Perhaps not always right away, as some things are better understood when you look back at them, but some key points will nonetheless be implied rather than said. Yet, if the reader feels lost in your dialogue, if he knows he's missing something, then he might get annoyed.
It's a delicate balance, one I've yet to reach in general.
I expect a lot of it to come with revision, and betas must be a great help in this regard. How do you deal with this? Do you have tricks, any other guide than your instinct?
Dialogues are my favourite part of a novel. I want to get them right!