Watson is used in hospitals, banks and classrooms, but the company showed off its playful side for hundreds of early risers in the Bay Area. The system assigned workouts, powered the dance floor, created breakfast recipes, and pulled data from social media as an LED sun rose inside. Upon registering, participants used Watson's Personality Insights service to analyze their strongest personality traits based on tweets or a short survey. Each personality received a color -- purple for conscientious, red for outgoing and yellow for expressive. Dancers wore their colors to the event.

San Francisco bar Folsom Street Foundry typically serves cocktails and hosts social events well into the night. But before the sun came up on Wednesday morning, it held a dance party with a high-tech twist. Daybreaker -- the organization that holds morning dance parties, which start with a 6 a.m. Watson is used in hospitals, banks and classrooms, but the company showed off its playful side for hundreds of early risers in the Bay Area. The system assigned workouts, powered the dance floor, created breakfast recipes, and pulled data from social media as an LED sun rose inside. Upon registering, participants used Watson's Personality Insights service to analyze their strongest personality traits based on tweets or a short survey.