In some Christian denominations, children perform plays re-telling the events of the Nativity, or sing carols that reference the event. Some Christians also display a small re-creation of the Nativity, known as a Nativity scene or crib, in their homes, using figurines to portray the key characters of the event. Live Nativity scenes and tableaux vivants are also performed, using actors and live animals to portray the event with more realism.