Studies and field researchs has showen that they attend a resturants and bars, but uses their phones all the time, as most of us do, the order less food or drinks, stay longer, and have more complains about the service.

That fact gives the business the incentive to reward the customer for putting his/hers phone down.

By conditioning the reward by sharing the event on social media, thus exposuring the business to thousands of users, we make a reward of free drink worth while to both sides.
It's truely is a win-win situation.