Though it's not a talent, I'm double jointed and can literally bend my left index finger all the way back and touch my wrist-- the wrong way. I can tounch the entire length of my thumb to my forearm. I can also throw my shoulder out of joint (not fun, makes me wanna black out), and can generally bend or twist any limb around at awkward, "sick and disgusting" looking angles, according to other people, without meaning too.
I also have the ability to pick up new tools or techniques and learn them insanely quickly with either hand. I'm ambidextrous with tools, guns, art supplies, technology, and rudimentary stuff as long as
I also have instant recall of a lot of stuff. If I know it, chances are I can spit it out in a matter of 10 seconds. Very rarely do I need to sift through stuff in my head to figure something out. this also gives me a hellacious memory, where I can recall entire conversations from a week prior, definitely recalling the subject and likely recalling some specific lines I said or heard. It doesn't even matter if it was banter or a serious conversation.
Related note, I learn stuff fast too and tend to apply it right away, meaning I learn anything that even mildly interests me, and sometimes I still learn something even when I hate the subject. Strangely though, I recently started having a hard time spelling things, but that's obviously not a talent.
I'm good with creating stories. If I have just one song, instrumental or what have you, I can make a story almost instantly. I give the characters, make them up, and I have yet another one. I think my count of original stories that I've bothered to develop goes to well over 50, and ones I've written down well over 200.
According to my family, I'm artistic, intelligent, and probably much too smart for my own good.
Since that is an absolute crock of bullshit, my hidden talent is that I ruin lives. I'm not even joking; someone I once considered a friend claimed that I ruined her life and made her the insecure, lying thief of a bitch she is. In reality, she was like that in the beginning, so I don't think I can take ALL the credit.