Sing, dance, toast—the way we celebrate says a lot about who we are. Happiness is a frothy pint of Guinness in Dublin, the sound of tuba music in Munich. During Songkran, elephants lumber through Bangkok, spraying water onto sopping crowds. Booming fireworks and bejeweled busts prove the Chinese New Year and Carnival share a love of sparkle. And perhaps most visually stunning, Holi revelers fling dyed powder until Delhi is stained a rainbow of colors. The world’s a party and you’re invited. RSVP with LivingSocial.