4. What does Tobias call Tris? What is her reaction?

Tobias calls Tris "Stiff." After he does so, she gets up and tells him to shut up.

“You about done, Stiff?” asks Four.

I stare at him, pressing my hands to my sides so no one can see them shake. He passes a knife from his left hand to his right hand, and I see nothing but his eyes as the second knife hits the target above my head. This one is closer than the last one—I feel it hovering over my skull.