"That didn't answer either of my questions." His expression darkens. If they're picking teams, that implies a competition. And if the marked Travelers are their pawns... Eren uncrosses his arms, hands balling into fists at his sides. He turns slightly as a foot moves back, not quite into a fighting stance, but enough that he can brace himself and react quickly if need be. "Why do you need teams!? What do you want from us!?"