Ooops. Okay, then.
I can touch my nose with my tongue.
I doubt it is in the realm of “talent,” but I jumped from the second story deck. Seemed like a good idea at the time, but I didn’t get hurt, seriously. Alcohol was involved.
When I remove my trousers, I remove my socks in the same motion. I remove my trousers one leg at a time while standing, stepping out of each leg in turn. I use the toes on my other foot to grasp the sock of the leg I am lifting out of my trousers so the sock is removed. Maybe not impressive, but definitely dumb.
I can turn out my feet to 200 degrees.
I can take a thumb tack, provided it’s not too unbalanced, and spin it on its point like a top by flicking it with my thumb and index finger. If I get a really good flick, I can make it spin for about a minute and a half or so.
I can also go from a standing position to flat on the ground, either prone or supine, with no effort or even intent!
Wasn’t exactly what I had pictured, but impressive nonetheless.
Jumpbass Wicked 
Thank you, thank you.
A guy’s gotta have a hobby.
Shucks, I never even mentioned my ability to palm chips. 
Are you using poker cards or bridge cards? Poker cards are wider and harder to do. Bridge cards are narrower and easier to learn with.
I can belch on command. And not sissy belches but 20 second, 90 dB belches.
i can squirt water out of my eye (only my left one though)
Just that. I had a small stroke years back and my sense of touch/pain never came back much on the left. One of the reasons I have to cook and do a lot of things right handed now - if I burn or break things on the left I’m not always aware of it.
I don’t bury it; just say 1/4 to half an inch or so. Just enough to stick good. And yes, like most stupid things, alcohol is sometimes involved.
Ooh, the back ! How could I forget the back, when it’s the most satisfying one. Can be heard across the room, too.
I can tap the end of a straw (in a glass of water) in such a way that the straw fills up all the way to the top. I’ve been intending to turn it into a bar trick- “Completely fill this straw with water without using your mouth, and without making a mess.”
If I had that ability, I’d be doing this all time (especially if there were no health consideration, although I imagine your doctor probably doesn’t condone this type of activity). Talk about a bad-ass statement to a mugger: “Oh you think I’m afraid of you stabbing me? Here, I’ll just stab myself.”
I can put my entire fist into my mouth.
I can jiggle my eyeballs back and forth and crack my jaw.
I can cut a deck of cards with one hand three different ways. I can also riffle shuffle a deck of cards with one hand. Since it’s related I can also riffle shuffle two short stacks of chips. I’ve been able to do all of these except the card shuffle for over 20 years (my point being that I’m not one of those people who learned to do it because they saw it on some online poker tournament).
If you’re interested…
- Hold the deck inside the fingers making a V or peace sign, using the thumb to rotate have the pack around (I think this is the method that you’re talking about Northern Piper).
- Holding the deck with all finger tips touching it. (in clockwise order) thumb on the long side of the deck, index finger on the short side, middle and ring fingers on the opposite long side, and pinky on the final short side. Using thumb to control, let the bottom half of the deck fall into your palm. Use your pointer (index) finger to push the bottom half out of the way of top half. Let the top half fall, and then use your thumb to push the remainder to the top of hte deck.
- Hold the deck similar to above, using pointer and thumb to slide the bottom half of the deck up (using gravity to hold the remainder of the deck) and over the rest of the deck.
Well, jeez, I thought I was the only person who could do that. Darn.
I can also move the one eye around independently of the other. People - notably my wife and my sister - find this very creepy.
I can crack my right elbow.
My parents are just so proud.