The Fill-In-The-Blank Trigger (Case Study)

The Fill-In-The-Blank Trigger (Case Study)
A copywriting brand ran one prompt format 18 times: a meme image with a blank line readers complete.
— Trigger: an open blank is an irresistible invitation to comment.
— Step 1: pick a relatable niche scenario.
— Step 2: write a sentence ending in '______'.
— Step 3: put it on a plain meme background.
— Step 4: reply to the 3 funniest answers only, fast.
Result: comment median went from 70 to 940; 5 posts cleared 8k shares as people screenshot-shared their own answers. Reach per post rose 2.7x.
The scenario input was unlimited, so the format ran indefinitely.
QA pass: one blank, no second prompt, reply within an hour.
Run it weekly.