Recent research by McCrindle Research indicated the following:
Percent of people finding the following attractors to religion:
16% seeing people display genuine life faith
13% people experiencing traumatic life events
12% stories from people who have changed due to their faith.
Things that repel people from religion:
19% philopsophical discussion, debates about ideas
26% miraculous stories (I'm thinking the Roman Catholic type random miracles)
27% hearing from public figures and celebrities about their belief.
On the upside, of people with no religion:
10% have an interest in or are quite open to religious conversation
13% would consider consider religion
8% don't know any Christians
3% have not heard the name of Jesus in a Christian context.