When you look at other people’s faces it’s possible to discover a range of information about them. Not just general information like their gender and age but also more specific information; their mood and what they’re feeling.

It would appear that in widely disparate cultures, people express and interpret six basic emotions – fear, sadness, happiness, disgust, surprise and anger – in much the same way. All people in all parts of the world use these same expressions; they frown when they’re angry for example, and smile when they’re happy.

Remember, we have emotions for a good reason. Imagine, for example, if you were unable to recognise the ...

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