Something you’re just good at with minimal effort and/or you learned much more quickly than average.
For me, it’s paper snowflakes. My brain just seems to effortlessly figure out what cuts to make to the paper wedge to make it turn out exactly how I want it. Largely useless, but good fun and was a much-needed ego boost when I was a kid :]
I am literally unable to remember people’s faces. If you talk to me, go for a walk, and come back ten minutes later, I won’t recognize you.
Once, the guy who sat next to me at university for two years, and with whom I spent countless time together, took the same bus as me. I hopped on the bus, saw him, and my brain told me “Uh, that’s kind of a familiar face, I guess”. I smiled to him (because he looked familiar), then I passed him and and went to sit some rows behind.
He’s made fun of me ever since.
The worst thing is, I work at the front desk of a hotel. I always struggle to remember who’s who. Sometimes I recognize their shirt, their hair, their voice, or I see a family with two kids and remember “oh yeah, they’re from room 210”. But most of the time, I must ask them to remind me which room they are, even if they checked-in just ten minutes before.
Prosopagnosia!