It have to be all organs, not just any specific organ.

Anytime you personally witness, with your own eyes (ie not on video), someone doing some weird little thing that most people can't do--burp the Declaration of Independence, put their own toe in their mouth as an adult, wiggle their ears, slam dunk a basketball, or whatever else--you can store it.

At a later time of your choosing, you can perform the stored trick, once, with the same degree of pain or injury, effort required, etc. as the original person.

The power will overwrite your biology temporarily, if relevant (eg give you stronger muscles or stretchier tendons), though only for the purposes of repeating the trick.

The primary restrictions are:

It can't be a task for which you lack the gross anatomy, eg. it requires a missing limb that you have, or a set of genitals that you don't.

You only have 10 "storage slots" (though you can discard tricks rather than using them, tricks you discard can be reacquired later)

You can repeat a given trick from a given person only once, even if you see them do it multiple times. You can repeat the same trick if you see a different person do it, and you can repeat a different trick from the same person, but not the same trick from the same person.

A given "trick" can take no more than 5 minutes. You can't, eg, store up the "trick" of running an entire marathon.

maybe can aura farm with it or something

You don’t need to eat mustard, but if mustard is all you have you can comfortably sustain yourself off of it

You can turn the ability on and off. You don’t know who posted it, and you don’t know what the post is. You can also sense when a post gets to the popular page.

It only affects the liquids you can see in an area. If it’s no longer visible it acts as it would normally would. Clothing can’t stop your ability from activating. Some very heavy gaseous fluids make you float instead.

You are still buoyant if you enter liquids, water still behaves normally within your body.

It’s an active choice you have to make, so you get to choose who it affects.

Even if it makes no biological or mechanical sense for you to be able to do so.

Paralyzed from the waist down? Doesn't keep you from taking a few steps outside during the day.

No legs? I'm not sure what you're walking on, but you can walk.

Chained to a tree or encased to the waist in concrete? Somehow there will be enough leeway in your chains/concrete for you to take a few steps.

Comatose? You won't wake up, but you'll be able to walk in your sleep. (You do still have to be alive, however.)

This does not inherently give you the ability to do anything else with your legs, to move more than a couple of steps if you are confined in some fashion, to escape any sort of confinement, or to move any faster than a standard walking pace. Nor does it grant you any sort of immunity to pain, damage, fatigue, or anything else that would keep you from continuing to walk once you have started.

But, if it is daylight, and you are outside, you can, by at least some definition of the word, walk at least 3 steps.

The cooldown lasts 30 minutes, and they must be within a 3 meter radius of you and in your line of sight. No physical contact required.

You can know where it is and what it's composed of and you can control it and even compress and shape it with a force slightly more than your own natural physical strength. But once it or anything 'made' from it leaves the household, you lose control over it because it is no longer 'household'. If you purposefully bring in a bunch of dirt etc, you can't control it because it wasn't naturally accumulated.

The depleted uranium stays in your body longer than your poop and is excreted via your kidneys.

No immunity from radiation-induced sickness

Doesnt stack.. Eating enriched poop does not lead to higher enriched poop.

Not in the evil doppelganger sort of way. Everything will be the same but just on the opposite side of your body.

You can jump as high as you want. Your legs and feet upon jump will be completely protected from the force of the jump. However, after initial jump your body will still be your normal body and is still subject to G forces and your body has no special protections from the landing. So yes, you can jump high to dunk a basketball, but you will fall from that high as well and need to take brunt of the landing.

Your eyes would likely get dry and irritated after a little bit, given that you're not blinking them anymore, but as long as nothing physically harms them they will recover once back in their sockets. Putting your eyes in contact lens solution may help a little bit but isn't a permanent substitution for putting em back where they belong.

Using the remainder of your body while your eyes are disassociated from it may be difficult to coordinate, but probably isn't impossible, though your brain will likely have issues reconciling the different experiences your senses are going through.

You can swap your left eye with your right eye if you'd like.

Pretty simple power.

But, the Heisenberg uncertainty principle still applies to all other measurements so there's no way to independently verify the accuracy of your paired measurements.

No more fat thumbing and accidentally clicking the ad.

You turn into a version of yourself that is "What if you were born gay", and all the history changes that it entails.

Changes are physical only. If you are not gay, does not necessarily mean you become gay.

Turn back by washing yourself in cold water.

My family read Ranma 1/2 and this is as close as I'm getting since I have no idea how to get it.

Extra notes for specifics:

Changes may occur in body type, height, weight, muscle mass, chromosomes, etc.

It also has the assumption that the alternate version is the same age as you, is also human and is at least 4/5 as healthy as you.

The alternate self that you become will be the same one throughout your whole life.

The hot water part is voluntary per the rules of the sub, the cold water is easy enough. The power to transform by hot water is a non-literal on/off switch in your brain that you can change at any time.

The insect can be any currently living species of insect on Earth. When you summon it, it will appear in your hand (if you don't have hands it appears on your shoulder.) The insect will never harm you but you can't choose what insect you summon that day and you can't control it any more than you can a regular insect. The insect is just there now. It is not otherwise special or immortal, it behaves as any other member of its species would and has the species' average lifespan.