Editorial Note: This article is written with editorial review and topic relevance in mind.
Peoples is used when we talk about two or more. What is the plural of people person? People is a collective noun.
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He was always energetic and positive and he was a people person. A people person is someone who is outgoing and has good communication skills. When we talk about a specific group of people, we consider it as singular and therefore, no need to add s.
