boys
caucasian
cheerful
children
class
classmates
classroom
desk
education
elementary age
four people
friends
friendship
gestures
gesturing
girls
group
happy
indoor
kids
knowledge
lesson
peace signs
preteen
pupils
school
schoolboys
schoolchildren
schoolgirls
schoolkids
selective focus
selfie
smile
smiling
study
symbols
taking
taking selfie
together
togetherness
victory