My sister did her sibling duty of leaking the existence of my birthday, with predictable results, much to my embarrassment. And the interesting thing is, my sister noticed something. I mentioned this in a blog post of mine before, that one time I did the dancing and people broke out in clapping.
Well, the same thing happened tonight: no blushing, but extreme laughter, complete with a facepalm and moving a little bit. That's how I reacted in extreme embarrassment, and my sister noticed the lack of blushing, inquiring into it, wondering if any members of our family even CAN blush. (I'm pretty sure my younger sister can and has, but other than her...not really.)
I thought it was interesting at least.