Final answer:
Steve's behavior of frequently practicing Spanish customs and disregarding most of his Japanese customs to fit in is an example of assimilation.
Step-by-step explanation:
Steve's behavior of frequently practicing Spanish customs and disregarding most of his Japanese customs to fit in is an example of assimilation. Assimilation refers to the process by which a minority individual or group gives up its own identity and adopts the characteristics of the dominant culture. In this case, Steve is adapting and assimilating to the Spanish culture after immigrating from Japan.