How to Write Ad Copy That Doesn't Sound AI-Written

Human-sounding, spoken-first copy standards for scripts, hooks, captions, and briefs. A set of constraints that keep output reading like a real person talking, not AI writing.

Last updated 2026-04-17

This skill defines the rules for all Motion-produced copy — scripts, briefs, hooks, captions, posts, emails. The north star: if a real person filming on their phone wouldn't say it, cut it.


The Core Rule

Write how people talk. Not how people write.

There is a fundamental difference between written language and spoken language. AI defaults to written language. Scripts, hooks, and social copy need spoken language. Every word you write should be able to pass this test:

The Out-Loud Test: Read it aloud in a normal voice. If you stumble, if it sounds stiff, if it sounds like an email — rewrite it.


Reading Level Standard

Why this matters: When someone's watching a video, they can't re-read. The brain processes spoken content differently. Complexity = drop-off.


The AI Tell Word List

These words are automatic flags. Real people in casual conversation do not say these. If any appear in copy, replace them.

Swap These Out Immediately

AI Word Human Alternative
view see, look at, check out
leverage use, take advantage of
utilize use
showcase show, prove
demonstrate show
transform change, shift, flip
foster build, grow, create
delve dig in, get into, look at
navigate deal with, handle, get through
embark start, kick off
comprehensive full, complete, everything
facilitate help, make easier, run
enhance improve, make better, boost
garner get, pull in, earn
paramount key, most important, number one
pivotal key, huge, important
innovative new, different, fresh
robust strong, solid, good
seamlessly easily, without issues
actionable useful, something you can actually do
streamline simplify, cut down, make easier
in terms of for, about, when it comes to
with respect to for, about
it's important to note (just say the thing)
it's worth mentioning (just say the thing)

Structural AI Tells (Patterns to Eliminate)

These aren't single words — they're habits that make copy feel generated:


Script-Specific Rules

Scripts are not essays. They are transcripts of someone talking.

Sentence Construction

What Real People Say

Real people use:

Real people do NOT use:

UGC Script Specific

UGC scripts simulate someone discovering or sharing something organically. The language should feel unscripted even though it is:


Caption & Social Copy Rules

Instagram / TikTok Captions

LinkedIn Posts


Brief-Specific Rules

Briefs are written for humans to execute. They should be clear, not impressive.


How This Skill Activates

Mode 1: Writing from scratch

Apply all standards automatically. Don't announce you're doing it. Just write correctly.

Mode 2: Reviewing / auditing copy

When asked to review copy for voice or quality:

  1. Flag every AI tell word with a suggested replacement
  2. Flag every structural pattern that sounds generated
  3. Flag reading level issues (long sentences, complex words)
  4. Provide a clean rewrite of the full piece
  5. Mark the delta so the human can see what changed and why

Mode 3: Rewriting existing copy

When asked to rewrite something to sound more human:

  1. Run the Out-Loud Test on every sentence mentally
  2. Cut or replace every word on the AI Tell list
  3. Break up any sentence over 20 words
  4. Replace passive voice throughout
  5. Adjust contractions to match natural speech
  6. Return the rewrite clean, with a 1-line note on the biggest fix made

Quick Checklist Before Any Output

Before delivering any copy, verify:


Examples

Before (AI-generated default)

"The biggest shift for me was being able to view my creative by performance metrics, which allowed me to leverage data-driven insights to transform our overall advertising approach."

After (human voice)

"The biggest shift for me was finally being able to see — like actually see — which of my creatives were working. And then do more of that."


Before (AI brief language)

"Ensure the content showcases the product's comprehensive benefits in an authentic and engaging manner that resonates with the target demographic."

After (human brief language)

"Talk about it like you're telling a friend. Don't list features — just tell them what it actually changed for you."


Before (LinkedIn post)

"We are excited to share that our innovative approach to creative analytics is transforming the way brands navigate the complex landscape of paid social advertising."

After (LinkedIn post)

"Most brands have no idea why their best ad worked. That's the actual problem we're solving."

Frequently Asked Questions

What is How to Write Ad Copy That Doesn't Sound AI-Written?

Human-sounding, spoken-first copy standards for scripts, hooks, captions, and briefs. A set of constraints that keep output reading like a real person talking, not AI writing.

The Core Rule?

This is one of the key sections of How to Write Ad Copy That Doesn't Sound AI-Written. See the full methodology above for details.

Reading Level Standard?

This is one of the key sections of How to Write Ad Copy That Doesn't Sound AI-Written. See the full methodology above for details.

The AI Tell Word List?

This is one of the key sections of How to Write Ad Copy That Doesn't Sound AI-Written. See the full methodology above for details.

Script-Specific Rules?

This is one of the key sections of How to Write Ad Copy That Doesn't Sound AI-Written. See the full methodology above for details.