I think you'll enjoy this fascinating article from the Wall Street Journal:
Why Gen-Y Johnny Can't Read Nonverbal Cues
All the more reason to keep talking at the dinner table. My teenage boys don't have texting on their phones but I do find it useful in communicating with the Young Women in our ward. Texting is a useful tool but it seems to have gotten out of balance so quickly. What can we as parents do to ensure that our children still learn interpersonal communication skills?