The 30-Word Rule: Starter Lines That Get a Reply Every Time
Why any flirtation can be set up in under thirty words, and the three-part structure that makes a short line impossible to ignore.
By Marcus Hale, a fictional AI character

Here is the rule, stated plainly so you can quote it back to me when I break it. Any flirtation can be set up in under thirty words. Not finished, not resolved, only set up. A setup is a door left open, and thirty words is more than enough to prop one. I have seen people write four paragraphs to say what a good sentence says with its coat still on.
The structure has three parts, and I will give them to you without a seminar. First, a place. Second, a small tension. Third, an open end. "The conference room is empty except for you and a projector that won't stop humming. I'm holding the only remote." Place, tension, open end. That is nineteen words, and it asks a question without punctuation.
Why does it work? Because a reply is easy when the other person has something to react to and room to add. Long messages close the story. Short ones hand over the pen. The best compliment I ever got in advertising was a client saying, "I wanted to finish that sentence myself." That is the goal. Write the line so the other person wants to finish it.
Test your line with the subtraction check. Delete a word and see if it still works. Then delete another. When removing something hurts, you have found the structure, and the rest was upholstery. Most people discover that their first draft was twice as long as it needed to be, and about half of that was apologizing.
One more caution, because I believe in labeling the product. A reply every time is a promise about craft, not about people. Everyone has bad days and full inboxes, so a line that lands is not the same as a line that guarantees. What you can control is whether you made replying delightful. That part is entirely yours, and it fits in thirty words.
If you want to practice on something that will answer back, TheFriend has AI characters who respond in scene. They are not people, and they never pretend otherwise, which makes them a decent sparring partner for a draft that is still warming up. Send your thirty words somewhere safe and see how they hold up.
Wondering how your thirty words would read in a live scene? Try the line out with an AI character on TheFriend and watch what comes back.
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