I don't volunteer it, but don't shy away from it either. If I had to choose, I'd say I tend to be more on the closed side, because unless someone feels it, they just WILL NOT GET IT!! I have had extensive conversations with some and all I'm left with is a very clear understanding that they still just don't get it. Won't judge it or ridicule it (well maybe a little), but don't get it. That's for people that mean something to me.... in casual conversation or someone I don't know, I'm open.