When my students are taking a quiz there’s nothing for me to do, so my hand then drifts toward my phone—or did, until I finally forced myself to stop carrying my phone around; and my twitchiness during quizzes was among the chief factors that pushed me to that decision. That twitchiness—that constant low-level anxiety at being communicatively unstimulated—seems so normal now that we may be slightly disconcerted when it’s absent.
