Look into my eyes: Communication in the era of face masks

‘Wallraven's research at Korea University in Seoul focuses on facial expressions. "The greatest source of non-verbal information comes from our mouths," he said, explaining that facial expressions, especially in the lower part of the face, reveal nuances in the spoken word. But face masks hide much of these facial expressions. This makes it difficult to put things that are being said into the right context, which may lead to uncertainty, Wallraven said. "Is that person smiling or grinning sarcastically? You just can't tell."

Read here (DW, May 22, 2020)