礼儀正しい (reigisashii): Reigisashii means "well-mannered" or "polite." It describes someone who follows proper etiquette and respects social norms.
挨拶 (aisatsu): Aisatsu means "greeting." It refers to the act of saying hello or giving greetings when meeting someone.
謝罪する (shazai suru): Shazai suru means "to apologize." It involves expressing remorse for one's actions or words.