Final answer:
August calls Mrs. Garcia's smile "shiny" because it is bright, radiant, and stands out. This metaphorical description conveys August's admiration for her smile.
Step-by-step explanation:
August call Mrs. Garcia's smile "shiny" because it stands out and catches his attention.
By describing her smile as "shiny," August is using a metaphor to show that her smile is bright, radiant, and full of joy.
It suggests that Mrs. Garcia's smile is unique and stands out from other smiles, just like something shiny stands out in a crowd.
This comparison helps convey the speaker's admiration and appreciation for Mrs. Garcia's smile.