Chances are when the phone rings you answer with “hello” or a similar greeting, but for many 20-somethings who have grown up in the cell-phone era, they think the CALLER should speak first. Meanwhile, a new study indicates that more and more youngsters are finding friendship in artificial intelligence. Doug spoke with NBC News Radio National Correspondent RORY O’NEILL, who talked about at how social trends and etiquette are changing in the 2020s.