"You are so pretty"
"You will be a heartbreaker some day" (Why is that even a good thing?!?!)
"That is such a nice dress"
"That braid makes you look beautiful"
These messages are sent in lieu of actually dealing with what the girl in question wants or does and frame her value or lack thereof in terms of appearance alone. Boys are rarely addressed in this fashion once they are no longer infants and quite frankly the incessant drone of "your baby is so cute!" is frustrating regardless of gender. Who cares if the baby is cute or not, and since nobody says your baby is ugly even if it is the statement of cuteness is irrelevant.
One thing that is part of this whole issue is the framing of all things in terms of career. If a kid draws a house, they must be an architect. If they play spaceship, an astronaut. To my mind this reinforces the idea that we are our careers and that all activities, no matter how mundane, should be framed in terms of their career advancement possibilities. Sometimes a spaceship game is just a spaceship game; it needs no added purpose to be worth playing.
It can be challenging sometimes to engage with children because they can't usefully bemoan Rob Ford's latest antics nor offer an opinion on the latest large man on the local sports team to injure themselves on the field of play. They can, however, talk about what game they like best, what books they have read, or what sorts of things they do for fun. In asking these sorts of questions we make it clear we want to know what *they* care about instead of framing all interactions in terms of career and prestige which only the adults care about.