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 :]
Having an ear for new languages and their pronunciation- I can memorize vocab and grammar quickly but what makes a big difference is being able to parse a conversation and pick out the pieces I don’t know or didn’t know until I heard it used. It makes it easier to dive in and learn as I go, which is so much faster, but unfortunately it also means I dabble a lot because I’m always wanting to try a new language.