Built this after my mom asked how to 'just make herself smile in a photo
apps.apple.com
apps.apple.com
https://dc.fandom.com/wiki/The_Greatest_Joker_Stories_Ever_T...
which reminds me of how the Joker's shtick was that he'd kill you and always leave you with a stupid grin on your face.
(Eg it's now taboo to ask female service staff, indeed any female, to smile)
..Joker was kinda playing a positive-sum move