The funny thing is, since leaving Hope's Peak, Nanami's relationship with touch is... complicated. So Subaru surprising her by hugging her from behind definitely made her jump the first couple of times and flinch for a bit after that.

But it's also something she missed - not that she hugged her classmates a lot, but hugs did happen. So this is kind of getting her used to it again, which is something that is nice even though she wouldn't be able to articulate that particularly well.

Subaru has this spirit of... playfulness and joy to him, that's just like cool water on Nanami's wounds. It's not just that dissociating into play is something she leans into readily - Subaru is also kind and empathetic. He brings a smile to Nanami's face. She loves goofing off with him and will take him up on it every time.

She's dragged him to game club multiple times at this point (probably, to be honest, he's dragged her there as well), and their gaming sessions are completely adorable. If what you're talking about is getting the consoles into the dorm side of school, that sounds adorable.