Well, I don't know of anyone trying to pray out loud during one of the class periods... certainly it wasn't openly prohibited, and it probably would have been allowed if it wasn't disruptive, but anyone doing it probably would have been subject to ridicule from classmates. We did do 'meditation' in Area III once.
However, let me blow your mind by mentioning that in Area II, our class was at one point instructed to repeatedly chant the word 'F**k'.
Whoa. One mind blown.