Question: what are the emoji hands?
Answer: 3 Student App Developers At WWDC On Creating Tech For Social Justice. By JR Thorpe.
Thumbs Up. The Thumbs Up emoji, also known as the "yes" emoji, is used to express general contentment. ... 
Thumbs Down. ... 
OK. ... 
Praying Hands. ... 
Peace Sign. ... 
Flexed Bicep. ... 
Clapping Hands.