From a Trade Publication I read:

What Smartphone Use Really Says About You
July 6, 2015 Tina Berres Filipski July 2015, PPB Magazine
The other night my husband and I were having dinner at a nice restaurant, when we noticed another couple at the table next to us deep in conversation—through texts on their phones. I’m pretty sure they were talking to different people as they were oblivious to the other person across the table. Their little boy, too, was engrossed in his cell ...