Human-like robots don't need humanoid bodies. They just need to be expressive. (Well, they don't need to be, but they will be.) ...

Gerry Baker is Editor at Large of The Wall Street Journal. His weekly column for the editorial page, “Free Expression,” appears in The Wall Street Journal each Tuesday. Mr. Baker is also host ...

The word "face" appears in many idioms and phrases, often symbolizing emotions, reputation, confrontation, or appearances.

facial expressions, vocal tone and volume, and other signals are collectively known as body language. Microexpressions (brief displays of emotion on the face), hand gestures, and posture all ...