Mention something about the climate and temperature of the set.

In Act I, we learn that it is very hot in the jury room, and also that the courtroom was hot as well. The jurors are overheated, cranky, and simply want to get on with voting.... they aren't in the mood for debate.

SEVEN (to SIX). Y’know something? It’s hot. (SIX nods.) You’d think they’d at least air-condition the place. I almost dropped dead in court.