Back in the olden days, brands whacked people over the head with feature-driven messages. Nuclear families, TVs and living rooms were the ideal environment for bully-boy push tactics to thrive. But online, the public is your judge and jury. Fail to entertain and you’ll hang. Make them laugh or cry, make them surprised or angry… but for heaven’s sake you got to move them. If you do, good things will happen; they’ll share, recommend, even watch ‘til the end! But what’s the best way to understand if you’ve got pulling power? Which groups does it resonate with? Facial tracking technology can answer these questions within a day or two for a few thousand pounds.