A person that does not like rain.
The author's diction and characterization indicates the authores purpose because the word choice they decide to use gives you a realistic image of inmmigration. The way he shows the characters is in a sequence of different thigs that Enrique goes through in life. For example, when Enrique's mother left them, the author shows how other people helped Enrique during that time in his story. The author showed how his grandmother took him in and loved him like a mother.
You can conclude that Rita enjoys being active and being around friends and family, so when she didn't have anything to do the rest of the summer she grew bored and lazy, which caused her to count and dwell on the fact that her friends weren't with her and how many days were left until they were.