If you’ve ever read dialogue that sounded like two robots trying to sell each other insurance, you know how quickly it can kill a scene. Good dialogue, on the other hand, is magic. It makes characters sparkle, tensions crackle, and readers feel like they’re eavesdropping on real life.

The trick is that “realistic” dialogue isn’t the same as real speech. In real life, people say “um” and “you know” and ramble about the weather. On the page, that’s dead weight. Instead, aim for the illusion of real conversation—sharp, purposeful, and revealing.

Every line of dialogue should either move the plot, reveal character, or add tension. Bonus points if it does more than one.

And don’t forget subtext. Rarely do people say exactly what they mean. “I’m happy for you” might really mean “I’m jealous.” “Do whatever you want” could mean “I’ll kill you if you do that.” What’s unsaid can hit harder than any line. A pause, a look, an unfinished sentence—those moments often carry more emotional weight than pages of explanation.

Use beats—small actions around the dialogue—to break things up. A shrug, a sip of coffee, a slammed door can add layers of meaning. Replace dialogue tags with action. You don’t need “he said” after every line. Instead, show beats of movement or emotion: “I’m leaving.” She grabbed the keys and didn’t look back. The action conveys tone and breaks up the dialogue naturally.

When you need to use dialogue tags, keep them simple. You want the emphasis to be on the words being spoken, not the tags. “She said” disappears; “she exclaimed” or “she intoned” sticks out.

Other tips for how to tighten your dialogue without losing its spark:

• Cut the pleasantries.
  You can skip “Hi, how are you?” and “Fine, thanks.” Readers know how greetings go. Start in the middle of the conversation—the place where something actually happens.
• Lose the exposition dump.
  If two characters are discussing things they both already know (“As you recall, you’ve been my brother for thirty years…”), it’s for the reader’s benefit—and it shows. Find subtler ways to weave in backstory.
• Trim filler words.
  In speech, we stall with “well,” “so,” and “I mean.” Use them sparingly. A strategically placed “well…” can show hesitation, but repetition drags.
• Read your dialogue aloud.
  Your ear will catch what your eye misses. If you trip over a line, your reader will too. Adjust rhythm and punctuation until the conversation flows like speech—but better.

Good dialogue hums. It should feel like music—rhythm, pauses, crescendos, timing, tone, and restraint. When done well, it gives readers the illusion of eavesdropping, and they’ll keep leaning in to hear what happens next. So, read yours out loud, and if it clunks, rewrite until it sings.