On January 7, these Iranian men hung clothes on a wall in Tehran, inviting passersby to take warm clothes if they needed them.

A woman in labor accidentally sent a text to a guy named Dennis Williams. It was the wrong number, but Williams showed up at the hospital to visit anyways.

Three hundred plumbers from around the country came to Flint, Michigan to install free water filters for the community.

This firefighter pays one family's electric bill to help them keep their severely injured teen on a ventilator.

What this homeless man did will almost certainly bring a tear to your eyes.

One couple bought a meal for strangers as a way to honor their estranged son. According to the news, their action set off a chain of random acts of kindness that day.

This woman received an anonymous donation from a complete stranger so that her dog, Gizmo, could have an emergency eye surgery.

One family in Michigan spends their time making adorable pillows, all part of a mission to comfort sick children (while raising money for them in the process)

In honor of National Random Acts of Kindness Day, dozens of community members in Saratoga, Florida pulled off their best selfless gestures, including buying each other lunch and handing out flowers to random people on the street.

One newscaster in Madison, Alabama surprised residents by heading to Wendy's with a camera crew and paying for strangers' lunches.

This young man stopped dead in his tracks to pray for a homeless man.

One waitress was incredibly moved by a couple's life story -- they told her all about their ups and downs. At the end of their meal, the waitress took it upon herself to foot the bill.

One group of East Orange area residents – known by the name “Random Acts of Kindness” – has been spotted roaming around the area providing food, clothing and other necessities to in-need community members.

After this woman paid for a man's groceries (he'd forgotten his wallet), he tracked her down and made a $10,000 donation to her organization in his name.

And finally, even rapper Lil Wayne was serving kindness recently: He stopped his plane and delayed his trip so he could do a meet and greet with some traveling soldiers.