Referential And Expressive Language Styles

Brandon is a toddler whose vocabulary consists primarily of labels, such as "doggie" for all four-legged animals and "ball" for anything round. His neighbor Cara, who is a few months older, uses phrases like "thank you" when receiving an item and "good doggie" when she sees the family pet respond to a command.

Brandon exhibits the _____ language style, while Cara is developing _____ language.