Katharine Greenaway and James Casey (2017), smiling was the key ingredient of Dale Carnegie’s recipe for success in winning friends and influencing people. At the same time, they note that under ...

An apparent viral marketing stunt for 'Smile 2' featured two people wearing demonic-looking smiles on their faces at an MLB playoff game on Oct. 14 MLBONFOX/X There's no escaping the creepy smiles ...

Some people may use the term “smiling depression” to refer to depression without evident or noticeable symptoms, particularly low mood. Depression usually occurs with observable symptoms like ...