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 :]
On the direct opposite… I’m an aphant, meaning I cannot visualize in my head. I do “visualize” or imagine places, but there is no actual visual aspect to it.
I’ve seen it described as a desktop PC with no monitor attached. All the information is there, it just does not get rendered.
Some people see it as a hinderance, but for me, it’s just the way I think.