Diners fill Riverpark, a New York City restaurant, in January. Restaurateurs fear that the tipped-wage hike being proposed in New York will force them to get rid of tipping altogether. Brad Barket/Getty Images hide caption

itoggle caption Brad Barket/Getty Images

Figuring out how much to tip, and when, is a delicate science. Some businesses are integrating technology into how you pay to encourage you to tip more. Dan Bobkoff/NPR hide caption

itoggle caption Dan Bobkoff/NPR