When someone is perky, they seem confident, happy, and ready to move. They sit up, smile, talk in a lively way — not drooping, not tired.

When someone is perky當一個人perky的時候，they seem confident, happy, and ready to move看起來自信、開心，而且隨時準備好要行動。They sit up, smile, talk in a lively way他們會坐得挺直、面帶微笑、說話活潑——not drooping, not tired不會無精打采，也不會顯得疲憊。

It is informal, a little cute, and not for serious reports. People say it of children, small animals, and of someone who has just cheered up.

It is informal, a little cute這是不正式、帶點可愛感的說法，and not for serious reports不會用在正式的報告裡。People say it of children, small animals人們會用它來形容小孩、小動物，and of someone who has just cheered up也用來形容剛打起精神的人。

You also hear perk up: to become more awake or more cheerful.

You also hear perk up你也會聽到perk up這個片語：to become more awake or more cheerful意思是變得更清醒或更開心。

People stretch the same idea to things that stand up in a lively way — a hat, a plant, a tail. They sometimes use it about a body that looks firm and sits up; that use is informal and can feel personal. The core picture does not change: up, bright, not slack.

People stretch the same idea to things that stand up in a lively way人們也把同樣的概念延伸到那些活潑地立起來的東西上——a hat, a plant, a tail像帽子、植物、尾巴。They sometimes use it about a body that looks firm and sits up有時也用來形容看起來緊實、挺立的身體部位；that use is informal and can feel personal這種用法不正式，而且可能讓人覺得有點私人。The core picture does not change核心的畫面不會變：up, bright, not slack就是向上、明亮、不鬆垮。

It is not a compliment you would put in a job reference; it is everyday talk, and it can sound slightly teasing if the cheer feels like a performance.

It is not a compliment you would put in a job reference這不是你會寫進工作推薦信裡的稱讚；it is everyday talk它是日常口語，and it can sound slightly teasing if the cheer feels like a performance如果那份開心感覺像是在表演，聽起來還可能帶點調侃的意味。