30s
activity
adult
audience
auditorium
briefing
business
caucasian
coaching
communication
conference
confident
congress
cooperation
corporate
course
educating
education
emotions
explaining
group
indoors
information
interaction
interior
leadership
lecture
lecturer
male
man
meeting
microphone
motivation
participants
people
portrait
presenting
professional
public
scene
speaker
stage
studying
success
teaching
training
whiteboard
work