The extroverted mathematician looks at YOUR shoes when he's speaking to you.
Eventually, Marty Mcfly stopped going back to 1985.
I wouldn't spend hours looking for my girlfriend at a ski resort if I lost her on the mountain.
A police dog in disguise.
Attractor
Clare your throat before you speak!
So they can speak more fluently
You take off your shoes before you jump on the trampoline.
Sneakers
The extrovert looks at the other person's shoes.
He looks at your shoes while he's talking to you instead of his own.
Introverted Engineer looks at His shoes when he's talking to you. Extroverted Engineer looks at Your shoes when he's talking to you.