In a unique promotion, McDonald’s McCafé is starting a chain reaction of kindness with a three-day, pay-it-forward program. “McCafé It Forward” is designed to spread goodness with one free cup of coffee at a time.

Starting Wednesday, August 21 and lasting through Friday, August 23, 500 coffee lovers across the country will kick off the promotion by using the first McCafé It Forward cards, then passing them along to friends, family, or even strangers. Each swipe of the card is good for one free small cup of McCafé Premium Roast Coffee or Iced Coffee per person at participating McDonald’s nationwide.

The public is invited to follow along all three days as the cards spread kindness throughout the U.S. by visiting BeABrewGooder.com.

“We know McCafé customers are already sharing acts of kindness every day, and McCafé It Forward is a chance for us to amplify what they’re doing on a larger scale and prove good is truly brewing around every corner,” says Elina Veksler, McDonald’s Senior Director of Brand and Menu Innovation Strategy. “We’ve been on a decade long journey with McCafé, and we share in that feeling of optimism each and every time our customers take that first sip of coffee.”

McDonald’s is offering another opportunity for goodness by encouraging people to nominate someone in their world who they believe has done something good for a chance to win McCafé for Life through the McCafé Be A Brew-Gooder sweepstakes, taking place from August 26 through September 29.