A good–but likely to be categorized as one of those “techno-phobic” responses or luddite cynicisms– analysis which seems to mesh with the experience of sitting at a table with a person who pulls out their phone almost immediately upon sitting down at a table with me. 

One could suggest that our interface with the iPhone is just this sort of micro-training that subtly and unconsciously trains us to treat the world as "available" to me, and at my disposal–to be selected, scaled, scanned, tapped, and enjoyed. (In fact, one might wonder whether the basic orientation to the world that is "carried" and learned in this micropractice isn’t analogous to the "training" one would receive from viewing pornography.)

Fors Clavigera: The iPhone-ization of our World(view)

It’s almost as the veneer of “productivity” seems sufficient for that person to be rude and standoffish.  It’s as if that person has put me into a category of “non-important”  (like an email filter)  that says they have permission to attend to THEIR more high priority items rather than be a face to face social person.