When Amelia smiles naturally it looks like this.
When she smiles for the camera she curls her lip up and looks like this. She says this is her camera smile. It cracks me up because it looks so goofy. She will hold this pose until the camera is put away and the only way to get a natural smile is to surprise her with something silly.
I don’t really care how she smiles but random strangers will walk by when she is doing this and tell her to smile like a big girl. I tell them to mind their own business. If she wants to smile with her upper lip curled, let her!