Elizabeth Kenyon stopped by McDonald's on 42nd Street in Times Square like she does almost every morning. But unlike each morning, when she pulled out her wallet, a McDonald's employee effectively told her to put it away.

"He said, 'How would you feel if I told you if I showed somebody love I'd get this for free?'" Kenyon, 36, said.

"I said, 'What do you mean?'"

The Freehold, N. J. resident was a surprised participant in McDonald's new "Pay With Lovin'" campaign, first announed in a commercial that aired during the Super Bowl last night.

All United States locations (not available in the drive-through) of the chain are offering the promotion today through Valentine's Day between 6 a.m. and 6 p.m. They expect about 1 million people to take part in the new payment system. Customers are chosen at random, and are asked to show some love. How they do that is suggested by employees. This reporter got a coffee gratis and showed love by high fiving an employee.

Kenyon decided to pay it forward -- she offered to buy the breakfast of the man in line behind her.

"It was cute," she said. "The guy was happy."

And for a slushy, wet, gray Monday morning, it doesn't get much better than that.

McDonald's new campaign is debuting at a troubled time for the fast-food giant. Its CEO recently stepped down, and sales are down.