Do you wear your Magen David in public?

I live in Europe and basically, as many modern Jewish European families I was taught to never wear Jewish symbols in public (kippah, magen David, tzitzis, etc...) Yet, recently I've worn my Magen David necklace twice. I admit that i felt a bit unsafe and nervous at first but I liked the sensation of being openly about my Jewish identity. So, I'd like to know, do you wear or not your Magen David in public?