So today I was drawing and I looked over at the man sitting next to me to see how he was doing. I noticed that his lines were very smooth, and his shading quite uniform and it occured to me that it looked like he was drawing it as if he was going to make it into something else later on. I thought "he's probably a sculptor."
Then, when I got talking to him during the break, I found out that's what he was. I was quietly impressed by my own powers of deduction.
But then I wished I'd asked him if he was a sculptor before he told me. Would've been pretty impressive.