Guide

I read again and again the brief...
Considering that this interactive experience have to be a guide, and my last idea is more about a message, a cause, than an information to be given :
I wait for your point of view, and your concepts, to make involve the situation.
:)
I really like the CCTV as a tool to look for a quiet place, we really have an audience which will be interested in this information. And finally we rather look for an information to give than a message.