Pictionary marathons, karaoke showdowns, multiplayer video games—bring ‘em on! Gregarious Mercury decamps to Sagittarius and your eleventh house of groups until December 16, handing you the social organizer’s clipboard. Your enthusiasm will easily wrangle those revelers into entertaining lively activities. This three-week Mercury cycle also stokes your humanitarian nature, so seek out organizations or movements that you believe in. Help that cause raise funds by tapping into your social media network.