20s
academic
adult
african
american
asleep
black
bored
boredom
boring
casual
caucasian
class
classmates
classroom
closed
college
conference
desk
diverse
education
eyes
female
girl
group
hispanic
horizontal
indoors
knowledge
laziness
lazy
leaning
male
man
men
people
person
presentation
race
resting
sitting
sleeping
student
tired
training
unhappy
university
woman
women
young