“A close-up selfie reaction hook you can use to sell a health & fitness app - transitioning to a 22-second step-by-step walkthrough of a skin scanner and routine builder.”

This app demo TikTok post pulled 769K views - 276× what the account typically does (~2.8K views on a normal post). That gap is what Handler calls an outlier: the breakout came from the content's structure, not the account's size.

Engagement pull sits at 1/5 (0.8% weighted), measuring how hard the post moved viewers to save, share, and comment - the actions that signal real intent, weighted heaviest. The product behind it: A personalized skincare analysis and treatment app.