It is phony to pretend to be something you aren't.
Louis is a child who has been in commercials and has moved to a new town and school and is getting to know the other students.
Louis wants to impress the other students.
Louis tells the other children he is a child actor that has been in commercials.
Louis tells the other children he is a child actor that has been in big movies, which is false.
Louis will be able to relay his unique experiences and get attention.
Louis will become stressed having to maintain the lie.