And that's what happened. Another class visited ours to sit around the perimeter of the room and observe our tracking, which was excellent.
As two teachers spoke to the class, conversation-style, from differing positions in the classroom, Hoggatteer heads whipped, left and right, to track the conversation. With laser precision, they kept their eyes on each speaker. The other class watched our demonstration of respectful attention. While in the room, they also got to hear my students respond with resounding "yes, sir" and "no, sir" as appropriate.