Familiar? Somewhat... my friend used it to do the same thing once before, and I was watching as he did it. I know how to access the network for the most part, and I know how to find food, and... well, that's it, really.

[He chuckles, and leads Eren into the burger place. It smells delicious in here... they're both seated and given a menu, and Hythlodaeus looks it over idly as he speaks.]

I can at least show you what I know.