The Great American Grump Out is celebrated on the first Wednesday of May, with this year's event taking place on May 6. This day encourages individuals to shift away from negative moods and embrace positivity, promoting happy vibes instead. Participants are urged to find silver linings in everyday frustrations, such as turning a lack of favorite breakfast cereal into an opportunity to enjoy peanut butter or striking up a conversation with someone in line. The initiative was started by Janice A. Hathy, who aimed to combat the negative effects of stress on health and promote joy. The term "Grump Out" was chosen to encompass a variety of joyful activities, allowing people to engage in whatever makes them happy, whether it's hopping, skipping, or simply taking a deep breath.