I don't remember too well which groups did what, but I guess that's not necessary anyway.
Voice inflection: Each character was portrayed differently in each group. The most obvious way of doing this is through the sound of the voice. There were different accents; Renee used a southern accent on the "you ate the horses" line. Some groups made that line high pitched, like they were completely horrified at the idea of eating the horses.
Pacing: There was a variety of ways that groups read through this as far as pacing. I read my character as nervous and maybe afraid of authority: kinda fast and shaky. Other people read the same character as very matter of fact, or even rude to "sir".
Body language: Whatever body language was used was either unintentional or off the cuff, because we didn't have a lot of time to think it through. The only thing that sticks out in my head is one person that was pacing. I can't remember who or which character, but I do remember that it was effective.
I can't think of another category, so I will just say that all the groups did really well and had a lot of fun with this. It was really cool to see what different groups came up with. I'm looking forward to seeing it again on Monday.