Fixed.BillTre said:Opps, smile!
Looks like "Darn, they are going to put me inside that crappy rocket!"berkeman said:
The three kinds of smiles mentioned in the title are the Duchenne smile, the Pan Am smile, and the Botox smile.
A Duchenne smile is a genuine smile that involves the contraction of both the zygomatic major muscle (which raises the corners of the mouth) and the orbicularis oculi muscle (which raises the cheeks and creates crow's feet around the eyes). It is named after French neurologist Guillaume Duchenne who studied facial expressions and their underlying muscles in the 19th century.
A Pan Am smile is a fake or forced smile that only involves the contraction of the zygomatic major muscle. It is named after the airline Pan American World Airways, whose flight attendants were known for having these insincere smiles.
A Botox smile is a smile that is hindered or restricted due to the use of Botox injections, which paralyze the muscles in the face. This results in a smile that appears less genuine and less expressive.
Research has shown that people are able to distinguish between genuine smiles and fake smiles, and that genuine smiles are perceived as more attractive and trustworthy. Therefore, the type of smile someone displays can affect how they are perceived by others, with the Duchenne smile being the most favorable and the Botox smile being the least favorable.
