Well...
I can type much faster than most people...using only 2 fingers.
After hearing a song a few times, I can play the whole thing back in my head, eliminating the need for an iPod.
I can easily hear sounds above 19,000 Hz; if a CRT is running nearby I can usually hear the scanning sound it makes. Which is a really annoying sound, by the way.
Sometimes, when gaming or programming, I lose track of what I'm doing, and in the process do it 1000 times better. As in, becoming totally unable to miss a shot with a tiny projectile even if the enemy that gets hit wasn't even visible when I fired, or spamming out hundreds of lines of code in no time that inexplicably do exactly what I had originally planned. I just wish I could learn to do that all the time.
Also:
WitherVoice said:
...with only a few minutes of observing some people together, I can quite accurately predict how they will react to a given situation. One might think that it's useful, but it's not, for a few reasons. The chief one is that while it makes it very easy to manipulate others, it does not make it easy to stop them from realizing that it has happened. The other thing is that not letting people catch on that I have them figured out usually involves saying nothing. People are freaked out.
Mine is a lot more random; it's not in my control most of the time, but sometimes I just have some random and perfectly accurate subconscious insight into a situation. It's also kind of creepy, though, as it can happen with people I've never met before. Like, a couple days ago, while playing TF2, I randomly said a dumb phrase I can't remember in a silly accent, and...well, another player immediately said the exact same thing, in the exact same silly accent. I have no microphone, so he couldn't have heard me, and it wasn't something I often say, or often hear other people say; in fact, I'm pretty sure I made it up on the spot. Or somehow decided to say it because I knew that guy would.
It's even more surreal when I correctly predict mistakes, like the time my little brother was standing near me trying to skip rocks in a lake; I suddenly decided he was going to hit me (standing a good 90 degrees from the direction he was aiming) with the next rock, and a couple of seconds later, he did. Good thing, too, because if I had been surprised I probably would have ducked and caused it to hit me in the head. (It hit my neck instead and somehow left no mark.)
It freaks me out far more than it does other people...mostly because I rarely point it out when it happens.