It's said that 90% of human communication is not in the words--these was of communicating include body language, tone of voice, pace of speaking, things understood between speaker and listener but not said. etc.  Face-to-face speaking was the only way of communication for thousands of years before petroglyphs, and later writing were invented.  Modern communication, starting with the telegraph and up to the internet, has less than 200 years.  Truly face-to-face communication is the real connection and a builder of relationships.