20s
attention
attentive
caucasian
classmates
classroom
college
concentrated
concentrating
concentration
desk
education
equipment
exam
examination
female
holding
indoors
information
knowledge
letter
listening
male
man
paper
paying
pen
question
quietness
raising hand
room
school
smiling
student
studying
table
taking notes
test
uni
university
woman
working
writing
young adult