They said that people keep their temper through smiling. Others believed that those who smile a lot actually have many problems while those who frown have hidden agenda. You cannot really tell because some smiles are well-meant while others are fake. Read this infographic so you’ll have an idea on whose smile is most convincing.

1. A smile that does not show teeth, lips are clamped and look like of a chimpanzee is a fear smile.

2. A long smile with a little bit of intensity is a genuine one.

3. If the smile was done fast and the eyes did not smile as well, it could be a fake one.