I think I made a 50-year old man blush, is that a special thing?

Anonymous
So I was talking to him and I noticed that after one of my sassy comments (still polite) he looked at me, leaned his head against his hand and blushed while staring at me and making a rather playful comment himself. He doesn't seem like a person who blushes easily, but then again, I don't know him well enough.
Could it be that he's attracted to me?
I think I made a 50-year old man blush, is that a special thing?
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