Finding prospects with an open heart.
Discovering people who are not closed to salvation.
Looking for folks who are looking for something.  

People attend community gatherings to see something new
They come to you and are open to input, not as defensive as when Christians approach them in a personal or private setting.  This is often doubted until tried.

Acts 17:21  "For all the Athenians and strangers which were there spent their time in nothing else, but either to tell, or to hear some new thing."
Acts 17:32  "And when they heard of the resurrection of the dead, some mocked: and others said, We will hear thee again of this matter."

In a public forum, the "Athenians and strangers"  were open to hear anything new.  Everyone is open to ...
* "What's the latest?"
* "Have you heard …?"
* and especially - "Have you seen …?"