A broad caption prompt such as “What do you think?” creates response friction: the viewer has to decide whether they have anything worth adding. Test whether a simpler, named action produces more meaningful engagement. Create two closely matched posts on the same topic, with the same format, hook, and core takeaway. On one, use the open-ended question. On the other, ask for one easy response tied to the post: “Which cover would make you stop, A or B?” “Save this before your next launch,” or “What would you fix first: the hook or the offer?”
Keep the test focused on what the response reveals, not just how many likes appear. After 48–72 hours, tag each post in a basic tracker by topic and prompt type, for example: Reel | product photography | broad question and Reel | product photography | A/B choice. Then compare comment quality, saves, shares, and profile visits. Specific prompts may attract fewer comments overall but clearer answers, while a save-use case can show that the post solved a repeatable problem. Which topic on your account would be easiest to test with a broad question versus one simple choice?