english: In a recent mimicking study at the University of Clermont-Ferrand in France, subjects were asked to determine whether a smile was real or fake while holding a pencil in their mouth to repress smiling muscles.
non_english: V nedavni raziskavi univerze Clermont-Ferrand v Franciji so sodelujoče prosili naj določijo, ali je nasmeh pristen ali narejen, medtem pa naj v ustih držijo svinčnik in s tem okrnejo premikanje smejalnih mišic.