20s
arm crossed
arms folded
attractive
audience
auditorium
brown
brown hair
business
businessman
career
caucasian
center
chairs
college
computer
computer monitor
conference
convention
copy space
corporate
desk
education
educational
empty
event
facial hair
furniture
hall
handsome
information
institute
jacket
lecture
lecture hall
line
looking
male
man
meeting
pc
posing
presentation
profession
professional
room
row
school
seat
seminar
shirt
short hair
standing
study
suit
tables
teaching
technology
thinking
thoughtful
tie
training
university
up
well dressed
white
window
young adult