Liquid Church is both the name of a book by Pete Ward (worth a read) & an American Church.
One of the things they used to have on their website was a guide to communicating the gospel (it is no longer there so you will have to trust me on this). It went like this:
"We know what time it is and what to do. We may not be of the world but we are certainly in it and trying to make a difference".
A recipe for communicating the gospel to a post-modern world:
- Holy Bible
- The Newspaper (including Art and Movies)