Sometimes it’s the little things, and not the big things, that can really make someone’s day. This is what random acts of kindness are, little selfless things you do for other people to make them happy. Being kind to others leads to fulfillment for both the receiver and the giver of the kind acts. The idea is that when you do something nice for someone else, they will pass it along making the whole world a better place to be. And you might like it so much that you’ll want to celebrate Random Acts of Kindness Day every day of the year.