The description of Eleanor in this quote is very powerful. In the book, Eleanor's home life is pretty awful, and she is forced to face each day with little energy. In this scene in the book, the true pain Eleanor is feeling is showing clearly through her facial expressions and body language.
Rainbow Rowell's unique style is also portrayed in this quote. Rowell often writes with subtle imagery, where the reader can easily picture the situation without the use of flowery language. It amazes me how easily Rowell can show the bleak tone through a single line.