Here's a Winge Smile with a Big Laugh and the

Closed Eyes!
A Duchenne Smile, is known as a 'Sincere and True Happiness Smile,' and may show
Crow's Feet

on the lateral sides of the eyes.
When we take the Duchenne facial smile reflex intensity further,
and include the procerus, nasalis and corrugator supercilli muscles,
among others,
and especially the closed eyes (by definition),
then we have a smile contortion
described by
Doctor Ralph Winge of USC Dental School
as the Epitome Smile or Winge Smile
or the
"Happiest Smile Known To Science!"
Here are some Winge Smiles of the Stars:
Elon Musk
Lebron James
Jonah Jameson

Issa Rae

President Obama

Neil deGrasse Tyson

Mike Tyson
Shaquille O'Neal
Hillary Duff
Chris Evans
Danny Glover
Dwayne Johnson
Steve Austin

Hamida Khatoon
John Cena
Steve Harvey
Jeff Daniels
Ricky Gervais
Daesung
Steph Curry
Oh...and
did I say...
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