Improvisational Theater, often referred to as improv, is a form of live theater where most or all of what is performed is created spontaneously by the performers. This art form encourages creativity and quick thinking, as actors respond to audience suggestions or each other without a script. The result is often humorous and unpredictable, making each performance unique. Improv can take many forms, including short games, long-form narratives, and even musical improvisation. It fosters collaboration among performers and invites audience participation, creating an engaging and dynamic experience. Notable improv groups include The Second City and Upright Citizens Brigade.