Words go out. It's what they're designed to do:

The story of Luke and Acts tells of 2 sets of words going out into the land: the word of Caesar going out from Rome, dropping down into Judaea, taking censuses and killing children; the Word of God going out from Jerusalem and ending up via Paul and Peter seeing Jesus' promise to build His church fulfilled, so that not even the gates of Hades (symbolic of state control of paganised religious structures...and loads more)could withstand it.
You see, eventually God's Word comes right to the heart of the very Roman beast in Acts, to have the final say: all very symmetrical and a literary masterpiece(but I'm an English teacher by trade so I'd say that, right?)

As Paul et al take the Word out, they do so in gentile Greco-Roman public spaces, which are the spaces where secular and political power are exercised: the agora, or marketplace.
So, if you wish to get a message to a whole town or nudge them into doing what you want, begin in the agora, and the word gets out via traders, dignitaries and public.

But what is going on here...?...