Is this smile fake or genuine?
FAKE!
What does this gesture means in the U.S?
Peace sign
Why do people shake their legs?
A habit or they are nervous
What do some people scratch their heads?
They got head lice or they are confused XD
How can you tell that someone is not interested in something?
They look distracted.
Why do people bite their nails?
Because they are anxious or scared.
What does this hand gesture mean?
pinching
How do people feel when they are scratching the chin?
Thinking...
What is this man doing?
duh, he's celebrating