Improvisational theater, often called improv, is a form of live performance where most or all of what is performed is created spontaneously by the actors. Unlike scripted plays, improv relies on the actors' creativity and quick thinking, often using audience suggestions to inspire scenes and characters. In improv, there are no rehearsed lines or predetermined plots. Performers work together to build stories and develop characters in real-time, which can lead to unexpected and humorous outcomes. This art form encourages collaboration, adaptability, and strong communication skills among the actors.