Open on the pain in the user's words, agitate once, then cut to the screen as the fix starts. Name the job, show the click that completes it, and close on one CTA verb. Do not list three plans, four integrations, or a security review in the cold ad. Those belong on the page after the click, or in a later retargeting cut once someone already watched the aha.
Keep the hook to one spoken sentence under three seconds. Complaint and pattern-interrupt hooks usually beat brand and category hooks for practitioner tools because the viewer is already in the mess. The demo line should point at a visible change on screen — a status flip, a file sent, a number appearing — not at a feeling. If a line needs a footnote to be true, cut the line. Do not invent metrics, named logos, or 'we replaced our agency' unless you would put that sentence in a contract and on the landing page in the same week.
Match the CTA to the motion you actually run. PLG and mobile: start trial or download. Sales-assisted: book a demo only after the ad has shown enough that the call is not a cold pitch. Mixed motions get two ads, not two buttons in one fifteen-second cut. Repeat the same verb on the landing page. A trial CTA on an enterprise product produces junk; a demo CTA on a cheap app produces friction. Watch click quality, not only CTR, or you will scale the wrong verb. If two verbs both feel true, split them into two ads rather than stacking buttons on one end card.