Read your last script out loud, at full volume, standing up. Most people get about thirty seconds in before they hear it: sentences that need two breaths, a clause that doubles back on itself, a word you would never actually say.
Writing for the ear is a different job from writing for the page, and almost nobody is taught it. Here is the short version.
One idea per sentence
On the page a reader can go back. Out loud they cannot, so a sentence carrying two ideas loses one of them. Split it. You will feel like you are writing too simply, and it will sound better.
Write the contractions
If you would say "it is not" you would write "it isn’t". Scripts full of expanded forms make people sound stiff, because they are reading a version of themselves that does not exist.
Put the important word last
A sentence lands on its final word. "This saves you about an hour" is weaker than "this saves you about an hour, every single week." Rearrange until the thing you want remembered is the last thing said.
Signpost the turns
A listener cannot see your headings. Give them the spoken equivalent: "here is the part that surprised me", "that is the setup — this is what actually happened". Two or three of these carry a whole video.
Time it before you shoot it
Word count is a better predictor of runtime than instinct, and running long is the most common reason a good take gets abandoned. Talk2Camera shows the word count and estimated read time on every script before you start, so you know whether it fits the platform you are aiming at.
Then read it against the teleprompter rather than off a page — the rhythm changes once the text is moving. Anything that still needs tightening can be cut in the editor afterwards, including the pauses.
