他们看起来都有点安静。

They all seem a bit quiet.

youdao

林婉学习很努力，就是有点安静。

Lin Wan is hardworking but quiet.

youdao

他很安静，稍微有点害羞。

He's quiet and a bit on the shy side.

《柯林斯英汉双解大词典》

Fourth floor is the quiet. You go into it and it's like, so silent. It's kind of scary.

四楼是安静区。你进去就觉得好寂静。有点吓人。

布朗的宿舍公寓 - SpeakingMax英语口语达人

and she's a little skittish just because of her history.

所以这段经历让她性格有点安静。

与流浪狗的相遇 - SpeakingMax英语口语达人