Then, quite unexpectedly, he suddenly pulled out a folder full of scripts and then took everybody's headshots. He then laid out all of the headshots on the floor and paired each one of us off with someone else. He then gave each actor pair a different script and gave us about 20 minutes to work on it. "Please prepare it and I'll see you back in this room in 20 minutes!"
Just as well we'd been following a cold reading course! We all immediately went into Margie Haber Mode. After 20 minutes, we all had to reconvene in the room and had to do the scene ('conversation' - yes, I know Saxon!) in front of all the others.
The funny thing was: nobody was really nervous, even though we had to read for a top casting director (and the rest of the class)! We'd so gotten used to the method of attacking the script that we all went for it - and it showed. The standard of the group was high - nobody performed badly.

Kenan, Peter, Perla, Paul Weber, Linda (top row) & Claire (bottom row)