True, Peter is no mindreader, not today at least, but it doesn't always take mind reading to settle on something with common ground to stand on--in this case, guys with harpoons and laughable dialogue but the only way that's different from a lot of more contemporary shows is that it actually works for this one.

"You might be surprised," Peter says, walking back over and inviting himself into a chair that rests between the two beds, rather than the one at the left side again, and thus unknowingly sitting where Dr. Cameron was not long ago. Fifty-fifty chance of course, so nothing to read into. Just here instead of there. "It lets you talk to anyone here who has theirs on them too, and in a tight spot you'll want it." Briefly his gaze flicks over to the man in the other bed. "He's got one too."

Point being: and if you don't want to talk to anyone here, maybe you'll want it to talk to him, on a day when no one seems to be there but you or a day when everything is upside down, or a day when no step in any direction will bring you where you want to go. There are far worse curses but they don't need to be the ones brought up to make said point.