It is a facilitation exercise intended to help a group to begin the process of recruiting. Ice-breakers are commonly presented as a game to "warm up" the mark and break down any barrier they may usually have.
In the case of evangelists, they will use a tract, an opening line, banners and skits. Many of their opening lines will resemble the following.
- "Have you got one of these tracts?"
- "What did you think of the message that the preacher said?"
- "Hi, my name is..."
They will also use gags, jokes, anything to put their foot in the door of your private life. Deny them this, and they can't even go any further, rendering their preaching completely useless.