Secular people are a natural target group for pitching rationality, since they don't suffer from one of the most debilitating forms of irrationality and also because they have warm fuzzies toward the concept of reason. From reason, it's easy to transition toward what it would be reasonable to do, namely be reasonable about how our minds work and how we should improve them. I did a Rationality 101 for Secular People presentation that was pretty successful, with a number of people following up and showing an interest in gaining further rationality knowledge. Here's a video of the presentation I made, and it has the PP slides I made uploaded into SlideShare. Anyone who wishes to do so is free to use these materials for their own needs, whether sharing the video with secular friends or doing a version of this workshop for local secular groups.

The Less Wrong meetup in Columbus, OH is very oriented toward popularizing rationality for a broad audience (in fact, Intentional Insights sprang from this LW meetup). We've found that doing in-person presentations for secular groups is an excellent way of attracting new people to rationality, and have been doing that for a couple of years now, through a group called "Columbus Rationality" as part of the local branch of the American Humanist Association. Here's a blog post I just published about this topic.

Most importantly for anyone who is curious with experimenting doing something like this, we at Intentional Insights have put together a “Rationality” group starter package, which includes two blog posts describing “Rationality” events, three videos, a facilitator’s guide, an introduction guide, and a feedback sheet. We've been working on this starter package for about 9 months, and finally it's in a shape that we think it's ready for use. Hope this is helpful for any LWs who want to do something similar with a secular group where you live. You can also get in touch with us at info@intentionalinsights.org to get connected to current participants in “Columbus Rationality” who can give you tips on setting up such a group in your own locale.