The extrovert looks at the other person's shoes.
Twitter only allows 160 characters
They both have wings, except for the elephant.
They were itentacle twins.
By looking at a bomb
The extroverted mathematician looks at YOUR shoes when he's speaking to you.
He stares at shoes while he talks to you.
During any conversation he's looking at YOUR shoes.
He puts himself in the other person's shoes and then walks away.
