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 :]
> just take the one looks like it fits and it is very close every time
“Very close” is easy - it’s the “very close without going over” that’s tricky ¯\_(ツ)_/¯
But it’s not something I can do unless it’s accidental…