Centuries ago, monks who took a vow of silence developed their own hand signs, with hundreds of gestures, that are still in use today. Plus, how do speakers of different languages distinguish similar shades and tints of colors such as red, yellow...
After our conversation about monastic sign language, Cameron Brick, a social psychologist at the University of Amsterdam, Netherlands, emailed to share his own stories about nonverbal communication and the power of silence. This is part of a...

