Why YSK: Because nobody likes slimy spinach, and this little trick soaks up the excess moisture that makes them turn. It’s like a tiny, silent hero for your fridge, saving you money and the sad feeling of throwing out perfectly good produce. Plus, more kale for your kale smoothies, if you’re into that sort of thing.

What, just like in the crisper drawer by itself? Wrapped around the item(s) you want to protect? Anywhere in the fridge?
I did a Google search and the recommendation is to put the paper towel over the mouth of the recipient the greens are in, or just shoved in the bag with them if that’s where they are.
OP seems to be mass-copying LPTs from someredditwhere or something.
At first I read “mouth of the recipient” as the person eating the greens
Just wave the paper towel in the direction of the greens, and they are protected, my child
Don’t forget the magic incantations.