In a discussion in the Comments of the post below this one, Tara Mobely, mother of the World's Most Beautiful Granchile™ said:
You point a camera at her and she makes that face. I don't know where she gets that from. . .
Señor David Austin Allen, Our Favorite Guy In All Of México, said: Looks to be that she is anticipating the blinding flash and seems to not like it, so she closes her eyes.
However, I believe that the ancient daguerreotype presented here shows us all "where she gets that from." As you can see, Granpa and Unca Jibby are both making That Face when the camera was pointed at them all those oh, so many years ago.