Improv, short for improvisational theater, is a form of live performance where most or all of what is performed is created spontaneously by the performers. This art form relies heavily on the actors' ability to think quickly and creatively, often using audience suggestions to inspire scenes and characters. The spontaneity of improv can lead to unexpected and humorous moments, making each performance unique. Improv is not only a popular form of entertainment but also a valuable tool for developing communication skills, teamwork, and creativity. Many actors, comedians, and even corporate teams use improv techniques to enhance their performances and interactions. Notable improv groups include The Second City and Upright Citizens Brigade.