Sol Stein on dialogue…
What counts is not what is said, but the effect of what is meant.
The best way to judge dialogue read aloud is to read it in a monotone without expression. The words have to do the job.
In creating oblique dialogue the questioner must provide the respondent the opportunity to be oblique.
Differentiate speech. The richest means of such differentiation are speech markers. Sarcasm, cynicism, run on sentences, tight or loose wording, omitting words
Dialogue is a semblance of speech rather than an attempt to duplicate it.