act
audience
audition
auditorium
blue
business
chairs
cinema
communication
concert
corporation
culture
discussion
display
education
empty
floor
guide
hall
indoor
influence
interior
lecture hall
lectures
listening
manage
mass
meeting room
music
nobody
observation
operate
order
performance
play
process
public
row
seats
show
social
spectacle
statement
structure
system
theater
theatrical
training