Sentence:  Sparrow size Virginia Gibson , with sparkling blue eyes and a cheerful <WSD>smile</WSD> , made a suitably perky Amy , while Melisande Congdon , as the real aunt , was positively monumental in the very best Gibson Girl manner . 
Meaning of the word marked with <WSD> tags:  a facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement