How did they do that?

Chris calls this her 'just got out of prison' pose. Poor thing, she takes the WORST pictures at school... her Valentine's day picture card, the pic for her Easter Egg... all horrible! So here's her Spring picture which makes me wonder about a lot of things but the main one is how did they get her to do that Glamour Shots hand pose there? Never in a million years could I get her to do that (notice she's doing it in both shots)!