Suggested tags
indoors
one person
man
african american ethnicity
black
40s
middle aged
large group of people
young adults
adults
20s
millennials
diversity
multi-ethnic group
teacher
lecturer
students
education
higher education
presenting
lecturing
teaching
talking
listening
raising hands
arms in the air
question
asking
volunteering
attention
technology
communication
lecture
lesson
standing
sitting
learning
concentrating
smiling
working
presentation
university
college
lecture theatre
lecture room
audience
desk
waist up
slow motion
handheld