詳細英文解釋：

A people voice is the voice that someone uses when talking to people who aren't their friends. This voice is automatically happy, nicer and sweeter than their normal voice. It is also often more high pitched. This is often the voice people use when answering a telephone or when working in retail.

中文解釋：

指與陌生或不熟的人說話更客氣的聲音

例句：

She so used her people voice when she was talking to that customer over there. Did you hear how sweet she was? She never sounds like that normally!

當她和那邊的客人談話時她說話十分客氣，你聽見她的聲音又多甜？她的聲音從未像那樣甜。