My IT department manager at a previous job was Mormon. He was a big Star Wars geek and could code with the best of us (but never had time to do so in his position, too many meetings). I didn't know for several months he was Mormon. His only tells were some self-censoring (like saying "cheese and rice" or "cheese and crackers" instead of certain common blasphemic exclamations) and he had six kids. Really cool guy. He eventually moved back to Utah to work for a tech startup there (the tech scene is actually pretty big in Utah).