Actor Claudia Zanella sports a Suppressed Smile during the premiere of "Portrait of My Father" at the 5th International Film Festival in Rome. We, of course, can't say why she doesn't want to fully smile from just one photograph, but after a look at Claudia's lower face - it's obvious she's working hard to prevent showing off her pearly whites. We've all seen this expression, and we've all displayed it many times. Sometimes, this particular facial signal can be mistaken for a pursing of the lips. But the contraction of the larger cheek and jaw muscles - rather than primarily the lips, rules out lip pursing. Ms. Zanella's eyes are also partially closed, which is an absolute requirement for a sincere smile.