2 sentences

1. 我们只是在说闲话，没谈什么正事。

   wǒ​men zhǐ​shì zài shuō​xián​huà, méi tán shén​me zhèng​shì.

   We were just making small talk, not discussing anything serious.

   Source: Dong Chinese Dictionary

2. 他在背后说闲话，让大家都很不高兴。

   tā zài bèi​hòu shuō​xián​huà, ràng dà​jiā dōu hěn bù gāo​xìng.

   He's gossiping behind people's backs, which makes everyone unhappy.

   Source: Dong Chinese Dictionary