2 sentences for 隐私 (yǐn​sī — secrets)

1. 随便打听他人的隐私是不礼貌的行为。

   suí​biàn dǎ​ting tā​rén de yǐn​sī shì bù lǐ​mào de xíng​wéi.

   Prying into others' private matters is impolite.

   Source: Dong Chinese Dictionary

2. 他这个人非常好事，总爱打听别人的隐私。

   tā zhè gè rén fēi​cháng hào​shì, zǒng ài dǎ​ting bié​ren de yǐn​sī.

   He is a very meddlesome person who always likes to pry into others' privacy.

   Source: Dong Chinese Dictionary