Must have been the hat....
Again, below, you see McCall's pattern No. 9798 - she even has her little white gloves in her hand, too. I do not really think it is a coincidence that the pattern is dated 1969, and "That Girl" with the wonderful Marlo Thomas aired from 1966 to 1971.
I think I am enjoying it as much as I did when I first saw it all those years ago.
Or maybe even more