Getting a Group on its Feet

A few months ago, I started a meetup group in College Station. Now, for those of you that don't know, College Station is located in the heart of the bible belt. I would be willing to put my money that this is the most religious, conservative public university in the country. That said, our group still consists of thirty-six people. Considering our location and size, I'm pretty happy with that.

We generally get together once a month for dinner. Unfortunately, attendance to our meetups has dwindled as of late. I do not know what I can do to get it up again. A member of mine suggested doing other things than just a monthly dinner, but I have no idea how we could be active and appeal to other atheists.

Any ideas would be greatly appreciated.