6 tricks in body language to read the thoughts of others

Oftentimes, body language can be compartmentalized into "negative" or "positive," body language expert Blanca Cobb, M.S., tells mbg. When someone's body tenses up, that's a common "negative" expression, which may be related to stress, discomfort, or anger. On the other hand, "positive" body language—like relaxing the body or resting comfortably—can indicate happiness and trust.