[A slow nod as he considers her thought.]

That would make the most sense. I suppose because they're goats I underestimated that similar herd and pack mentality that is shown in the wild. In which case...

[His gaze shifts over to the oldest looking one, the white hairs and long beard more prominent.]

I don't know if she's the "leader," but they treat her like an elder of the group, so her say must be more persuasive.