20s
adult
anticipation
blackboard
casual
caucasian
cheerful
class
classroom
college
confident
copy
crossed
education
eyeglasses
female
happy
horizontal
indoors
lecture
lesson
looking
looking at camera
occupation
one
people
person
portrait
profession
professional
readiness
school
smart
smile
smiling
space
standing
student
study
teacher
teaching
university
up
whiteboard
woman
work
young