The answer is "seven" basic facial expressions of emotion.
Facial expressions are the intentional and automatic developments that happen when at least one of the 43 facial muscles on the face are locked in.
It is broadly supported inside established researchers that there are seven essential feelings, each with their own particular extraordinary and unmistakable outward appearances. These are: Happiness, Sadness, Fear, Disgust, Anger, Contempt and surprise.
