1
aim
aiming
arm
arrow
background
boy
caucasian
child
communication
count
counting
cursor
direction
finger
first
gesture
gesturing
hand
here
human
index
isolated
kid
learning
little
mathematics
middle
number
one
open
part
people
person
point
press
push
reaching
school
show
showing
sign
something
symbol
touch
up
wall
warning
white
wrist