I actually am not going to be shy about it. I'm going to mention in casual conversation things like, "The other day in _____ class we were discussing _________ and an interesting point was brought out."
I can't wait for my privileges to be taken away.
Considering that you're studying biology, I think it's inevitable that your privileges go away. Just mention evolution to an elder or two and that'll be that.
It might also help you casually bring up evolution with your wife, but with all the progress you've been making with her lately, she might be mentally out before you start classes.