National Do Something Nice Day is celebrated annually on October 5th. This day encourages individuals to perform acts of kindness, whether big or small, to brighten someone else's day. The goal is to promote positivity and foster a sense of community through simple gestures. People can participate by helping a neighbor, complimenting a stranger, or volunteering their time. The day serves as a reminder that even small acts of kindness can have a significant impact on others and inspire a ripple effect of goodwill in society.