[What wild and varied manners we have at work here... it's Fine. He's used to the way Rowdy Looking Boys are by now, it's fine. Enjoy your salted salmon onigiri, Yuuji!]

There's a few different ways to do it, but they have a feature on them, you can trade information just like... this.

[Once they are on the same screen, Shinji moves his tablet over to Yuuji's, letting the very tops of them lightly bump together with a gentle 'tap'! A moment later, and it looks like the two devices have swapped info, no sweat!]

There we go.