2
4th
adult
arm
background
blue
body
business
caucasian
child
closeup
communication
concept
count
counting
female
finger
fingers
four
gesture
gesturing
greeting
hand
hands
hello
help
human
idea
index
isolated
number
open
palm
part
people
person
show
showing
sign
skin
stop
symbol
thumb
touch
two
up
white
woman
wrist
young