Kushina can be the responsible adult. Naruto will continue to be Naruto, especially since he's standing in awe of one of the two people he loves most. She's talking about something, but all he's doing is smiling like an idiot, head tilted at an angle to make him look like an inquisitive puppy.

He also notices how he can feel her chakra, how warm and alive it feels. That makes him pause and reach over to poke her cheek while she's looking around.

"Ah, hey! You're alive, y'know!"