Why do we judge people from the moment we see them? And when we feel threatened by them, what happens during our body’s emergency response to fear. Read about my involuntary nonverbal behaviours when I encountered a guy with Tourette Syndrome. Both our bodies reacting to a stimulus.

Are you missing an important channel of communication?

Most of us listen to spoken words as we interact with others, but not many people pay conscious attention to what remains unspoken. Words can, and do, convey lots of complex thoughts, theories and feelings, but they are usually filtered and adapted to create a certain impression, giving you, the listener, the 'intended' message. There are lots of reasons for this– to be more amicable, to maintain relationships, to deceive, to conceal emotions, to make others feel better– to name a few. So it's not all bad. Imagine if everybody spoke their thoughts– Ouch! In many situations, however, you could benefit from knowing more and having a good understanding of how the person you interact with really feels, whether it's potential deception in a negotiation or marriage, or when you just want a family member to be more open with you.

Scientists have found that the muscles in our face can produce 30 independent movements– 12 in the upper face, and 18 in the lower face. Working together in various combinations, these muscle movements are capable of creating thousands of expressions. However, most scientists agree that out of all of these expressions, only seven are 'universal'– innate within all of us, regardless of culture. They are...