Our international playboy is, in reality, a gentleman.
First off - what are "manner hands?!"
Especially in Korea where casual physical contact between people of the opposite gender isn't common (yet cuddling with the same gender is more common than in the west...) Manner Hands are a way to look close, but maintain a polite distance.
For example, putting your hand around a person's shoulder but keeping your arm/hand hovering so you aren't actually touching the person :)
Well, even in the USA, Jungkook kept up with Korean tradition!
Looks like a cute fan photo right? It totally is!!! But let's zoom in on Jungkook for a second ;)
Yup, he's hand-hovering LOL
It's not rude, like he didn't want to touch her, but the exact opposite! He's respecting her space :)