adult
audience
briefing
business
businessman
businesswoman
center
communication
conference
congress
convention
cooperation
corporate
discussion
education
event
explaining
female
group
hall
indoors
large
lecture
listening
male
man
manager
meeting
men
occupation
office
participants
people
person
presentation
professional
public
room
screen
seminar
sitting
speaker
speaking
speech
teaching
team
teamwork
training
white
women