has a marketing mission that, as far as client mandates go, is pretty fun: Find surprising ways to use standard ad buys. For example, earlier this summer the booking site put a twist on Facebook's silently autoplaying videos by creating a very different experience when you watch its ads with sound. Now agency Crispin Porter + Bogusky is back with an effort that tests viewers' eyes rather than their ears: a TV ad covered in legal disclosure that happens to include rules for entering a sweepstakes. DVR users who pause the ad rather than skipping it will learn how to enter for a chance at a trip for two. Get the full story at Adweek