An extrovert mathematician will be looking at the other guy's shoes.
To stop themselves sinking into the sand. Why did the ostrich stick its head in the sand To look at the camels who forgot to put their sandals on.
Bandit like Beckham
Because they are the wurst.
Nothing, because he is the one who knocks.
The extrovert looks at the other person's shoes.
When talking to you, the extrovert mathematician looks at *your* shoes.