20s
30s
50s
adults
business
businessmen
businesswomen
caucasian
class
classroom
confident
conversation
conversing
cropped
discussing
discussion
diverse
diversity
group
hispanic
in front of
indoors
lead
leader
leading
lecturer
listening
mature
meeting
middleaged woman
multiethnic
multiracial
people
professional
selective focus
seminar
side view
sitting
smiling
speaking
standing
students
suits
talking
teaching
training
waistup
watching