Ever gone to dinner or the bar with friends, and everyone’s nose is buried in their smartphones? They’re checking in on Foursquare, updating Facebook, tweeting, taking Instagram photos, reading reviews on Yelp, or texting people who haven’t gotten to the restaurant or bar yet. (I’m guilty, for sure.)

Next time, play the “phone stack” game. Everyone’s phones get stacked face down on the table. Anyone who reaches to answer their phone during dinner (if it’s not an emergency) has to pay part of the tab!