30s
activity
adult
appearance
attendance
career
casual
caucasian
class
classroom
confident
contemporary
course
desk
discovery
diversity
educational
european
german
group
improvement
indoors
intelligent
interacting
knowledge
lesson
male
man
notebook
notes
occupation
person
portrait
posing
positive
process
research
school
sitting
student
studying
suit
team
togetherness
training
working
writing
young