tiger woods steve williams
AP

New research by Dr. Leanne ten Brinke, a forensic psychologist at the Haas School of Business at the University of California, Berkeley, and her collaborators, suggests that our instincts for judging liars are actually fairly strong — but our conscious minds sometimes fail us.
Luckily, there are signs we can look for when trying to detect a lie.
Dr. Lillian Glass, a behavioral analyst and body language expert who has worked with the FBI on unmasking signals of deception, says when trying to figure out if someone is lying, you first need to understand how the person normally acts. Then you'll want to pay careful attention to their facial expressions, body language, and speech patterns, she writes in her book "The Body Language of Liars."