Uber is rolling out a new function in its ride-sharing app to allow tipping. The company says in-app tipping should be available to all drivers in the U.S. by the end of July. Similar apps like Lyft already offer tipping. But how much should you tip your driver?

Here & Now‘s Jeremy Hobson talks tipping with Steve Dublanica (@waiterrantz), a self-described “recovering ex-waiter” from New Jersey and author of “Waiter Rant” and “Keep the Change.”

Copyright 2017 NPR. To see more, visit http://www.npr.org/.