Transcribe an actual conversation and try to read it as fiction. The result is nearly unreadable.
Real speech is full of false starts, repetitions, half-finished thoughts, interruptions, filler words ("um," "you know," "like"), and tangents that lead nowhere. It meanders. It doubles back. It establishes very little.
Fictional dialogue that sounds realistic is a careful, deliberate construction—one that gives the impression of natural speech while doing entirely more work.
Understanding this paradox is the foundation of writing dialogue that actually works.
Dialogue Is Action
Every line of dialogue in a story is a choice a character makes under specific conditions. That choice reveals character, advances plot, establishes relationship dynamics, or all three.
Weak dialogue states information the reader needs to know. Strong dialogue enacts something between characters while incidentally conveying information. The difference is the difference between characters who are conduits and characters who are people.
Ask of every dialogue line: what is this character doing with these words? Are they deflecting? Seducing? Testing? Lying? Performing for someone in the room? The answer shapes how the line is written.
What People Don't Say
Some of the most powerful dialogue in fiction is what goes unsaid.
Characters who need something from each other rarely ask for it directly. They circle. They approach sideways. They change the subject at the crucial moment. Ernest Hemingway built an entire style around this—dialogue where the real subject is the one no one mentions.
Knowing what your character can't bring themselves to say, and writing the conversation that happens instead, often produces the most charged exchanges.
The Music of Differentiated Voices
Every character should have a voice you could identify without attribution tags.
This doesn't mean accent or dialect, necessarily—though those can help. It means vocabulary range, sentence length, what they notice and comment on, how they handle silence, where their humor lives, what topics they avoid.
A useful test: cover the dialogue tags in a scene and read it aloud. Can you tell who's speaking? If the voices blur together, your characters need more individuation.
Said Is Not Dead
A persistent writing-workshop myth holds that "said" should be replaced with vivid alternatives: exclaimed, retorted, queried, ejaculated. This is wrong.
"Said" is nearly invisible to the reading eye. It does its job—telling us who spoke—without drawing attention to itself. Exotic dialogue tags do the opposite: they pull the reader out of the conversation and into the mechanics of attribution.
Use "said" as your default. Use other verbs only when the manner of speaking is genuinely essential and not already conveyed by the dialogue itself.
Read It Aloud
The single most reliable test for dialogue is reading it aloud.
If you stumble over a line, readers will stumble over it too. If it sounds like no human being would ever say it, they'll feel that, even if they can't articulate why. If it flows—if it sounds like something a specific person in a specific moment might actually say—you've done the work.
Great dialogue isn't recorded. It's composed. And like all composition, it improves dramatically when you hear it.