Example for Items and their Interactions
Lets say you have a Bottle with a Liquid in it, what do you think can you do with it?
First the most obvious, drink it and you get whatever Effects that Liquid has, Nutrition, Drugs, Potion Effects whatever you drank was. This is typically the use Action.
Now what about throwing the Bottle at someone? Well that would be the chuck Option, and result in something similar to Splash Potions in Minecraft (+ Physical Damage of the Bottle itself hitting), but only if the Liquid actually has a “Splash Compatible Effect”. A Bottle of Acid would for example have an obvious one, Booze would drench you in alcohol and make you slightly more flammable, while Water and most Juices etc. could extinguish you, or at the very least make your Clothes dirty, especially dirty when it was a Dye!
But what if you dont just wanna throw a Bottle at someone? What if you just whack it on their Head? Well, the Bottle itself would break, causing the Splash Effect and Physical Damage, but as a Bonus you now have a broken Bottle that can be used as a Melee Weapon.
Both the whack and the chuck option would result in Glass Shards spraying on the floor, which can but usually don’t harm people walking over them.
So what about forcing someone to drink the Bottle? Well that would be part of the action Menu, because it is an unusual use of the Bottle. Same would go for putting Poison from a Bottle into Food, as it’s not a commonly done thing.
And if you want to coat a Surface in a fluid by just dumping the Bottle onto the Floor, a Person or something similar, that is also action Menu. And unlike chuck and whack this will not end up breaking the Bottle. A lot of unusual things will be in this Menu.
When the Bottle happens to be empty, you can just use it on something that can fill it with Liquid, like a River, a Tap or a bleeding Creature. I should mention that some of these Actions will require a few seconds worth of time and can be interrupted by others.
Not to mention Bottles dont have to contain Fluids, they could contain Solids and Dusts too, or small Creatures like Insects and Frogs, or even Gasses, though that last one is usually harder to manage. Letters, Molotows and Miniature Ships are also an Idea!
Filling an Object in your Inventory, for example a Cup, would also be in the action Menu, as it also requires you to select which Cup to use from your Inventory.
Last but not least, ofcourse you can put the Bottle on a Shelf or the Floor or whereever. And then maybe put a Firework Rocket in it and light it!
This is just one Item, yet there is so many possibilities for its usage!
And there will even be some nonesense in the action Menu like “eat the Bottle”, though those will be sorted to the bottom of the List (but still above “Misc”).
Generally the action Menu is sorted depending on which Actions will make most sense, and you can sort certain Actions by proving you can use them that way. Like a Firework Rocket on a Crossbow, which will be sorted into the “Misc” category at first, until you discover this can be weaponized very well, and they go up into the Ammo Category (which for Crossbows is at the top).