Facial Expressions -- What's Happening? (image) The Hebrew University of Jerusalem Caption Expressions numbered 1,4,6 show tennis player's face on losing a point; expressions numbered 2,3,5 show a player after winning a point). Tests show that those looking at facial expressions alone cannot determine what the true emotion is. Credit Reuters: Used with permission Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.