Scim over the parts that you and your crew don't get involved with and open it to discussion when you get to something they are interested in.
Ask open ended questions such as, what do you think of this requirement, or why do you think they had to put that in the Code.
One example I like is the definition of Fountain in 680. "...does not include drinking fountains." Why do you think that is in the Code ?
Pizza and beer helps.
Alan--