(CNN) – Today is World Kindness Day.
An organization called the World Kindness Movement started the day in 1998.
28 countries now mark November 13th with acts of kindness.
A campaign to wear cardigans for this year’s day has spread on social media.
A Pittsburgh broadcasting station wants people to channel the spirit of “Mister Rogers.”
Social media users are urging people to use hashtag world kindness day (#wordkindnessday) to show off their good deeds and cardigans.
Kindness UK also listed a few things you can do to spread kindness.
they include doing a good deed, giving someone a compliment, holding the door for someone and volunteering.