Open mic
An open mic or open mike (derived from open microphone) is a live show where audience members may perform at the microphone. Usually, the performers sign up in advance for a time slot with the host or master of ceremonies. These events are typically focused on performance arts like poetry and the spoken word, music, and comedy.
Poetry and spoken word
Poetry and spoken word open mics feature a host, who is normally a poet or spoken word artist, poets and spoken word artists, and audience members. A sign-up is done before the show begins, so that the host has a list of names to call from. Poetry/spoken word open mics are laid back, serene, and contain lively conversation in between readers and/or performers. They are usually held in libraries, coffee houses, cafes, and book stores or bars. Each poet or spoken word artist is often asked to keep their performances to a minimum/specified time slot, giving each performer enough time to share some of their work.
Comedy
Comedy open mic nights can be held at established comedy clubs, but are more commonly held at other venues with or without a stage, often the upstairs or back room of a pub or bar. Such nights give newer acts an opportunity to practice and improve, with a view to getting paid work. More experienced acts get an opportunity to work out newer material where the audience is not paying in anticipation of seeing their normal act. In a typical open mic night, newer acts will get three or maybe five minutes of stage time, but more experienced acts may get ten or more minutes. There are booked shows, true open mics and bringer shows. A book show is usually booked week in advance with some lottery spots. A true open mic you put your name on the list and you go on when your name is called. And the bringer show is when you have to bring x number of people to get on stage.