You can’t give anything away while wearing the cloak of obscurity.
Attacking someone while wearing the cloak of obscurity would be counterproductive, to say the least.
You reach out, grasp the keys awkwardly through your cloak, and maneuver them into your pocket.
You can’t climb anything while wearing the cloak of obscurity.
You can’t transact any business while wearing the cloak of obscurity.
The cloak of obscurity covers you from head to toe. Under most circumstances, you can’t reach out from under it to pick anything up.
If you want to wash, you’ll have to take off the cloak.
You can’t reach out from under the cloak to fill your canteen.
You can’t drink from the fountain while wearing the cloak of obscurity. Either take it off or drink from your canteen.
As long as you are wearing the cloak of obscurity, you cannot put on or take off any other item.
Don’t be silly.
Note that you can’t normally pick anything up while wearing the cloak of obscurity; this is a special case.
You crouch down, pick up the ring and slip it into your pocket.
You are already wearing the cloak of obscurity.
Oh, gee, I forgot to tell you. The cloak of obscurity only works on humans.
You slip on the cloak of obscurity.
Your contact with the outside world is now limited.
The cloak makes you unnoticeable to most eyes. You can still move about freely and use objects in your pack, but you will not be able to interact with people, or manipulate most objects in the outside world.
You take off the cloak of obscurity and restore it to your pack.
You’re not wearing the cloak. It’s in your pack.
The cloak fits you comfortably, but it would get awfully crowded if you tried to fit a genie under there as well.
If you drop that now, you probably won’t be able to pick it up again. Better keep it.
If you want to talk to anyone, you’ll have to take off the cloak first.
The guard is not going to stand by patiently while you rummage in your pack.
The eunuch is not going to stand by patiently while you rummage in your pack.
