haha, same here. I've been a brony (well, pegasister) for about a year and a half now, but I'm new here too. I didn't really know about Brony Day being a thing, but what the hay? -brohoofs!- happy brony day everypony!
mother of god... I just realized that I wore a fluttershy shirt and my wristband to school today because you said that, not even knowing about Brony Day. -yay!-