When I was interviewed for the radio station, the interviewer told me that he goes down to Mill Avenue (one of the main thoroughfares going through Arizona State University) to spread the Gospel, and when he does so he often runs into activists atheists who engage in atheist evangelism there. I asked him if they passed out tracts, and he told me they did.
I always thought the Outsider Test for Faith was eminently tract-able. You could even make it look like the Four Spiritual Laws. Then you could walk up to some unsuspecting believer reading their Bible and ask them "Have you taken the Outsider Test for Faith?"
Remember when atheists used to say they weren't trying to convert anybody?