It's really the warmth of Scorpius's shoulder next to his that has him smiling slightly as he pulls his phone out and shows him some ridiculous little app that he's downloaded. James is very much invested in his own Wizarding culture, but he has enough of his grandfather in him to be fascinated by the impressive leaps in technology made by Muggles, too.

The hand not messing with the phone reaches out, though, mid-explanation to seek one of Scor's. They'll have enough warning to let go before Al just returns, right?