5 sentences

1. 也许是荷尔蒙作怪。

   yě​xǔ shì hé'ěr​méng zuò​guài.

   Maybe it's the hormones.

   Source: OpenSubtitles

2. 我怀疑有人在暗中作怪，破坏我们的合作。

   wǒ huái​yí yǒu rén zài àn​zhōng zuò​guài, pò​huài wǒ​men de hé​zuò.

   I suspect someone is working behind the scenes to undermine our cooperation.

   Source: Dong Chinese Dictionary

3. 那对男女躲在树影下作怪。

   nà duì nán​nǚ duǒ zài shù​yǐng xià zuò​guài.

   That couple is acting suspiciously in the shadows of the trees.

   Source: Dong Chinese Dictionary

4. 当地人传言是有冤魂在这里作怪。

   dāng​dì​rén chuán​yán shì yǒu yuān​hún zài zhè​lǐ zuò​guài.

   Locals rumor that a restless spirit is haunting this place.

   Source: Dong Chinese Dictionary

5. 他的样子有点儿作怪，让人觉得很不自然。

   tā de yàng​zi yǒu​diǎn r zuò​guài, ràng rén jué​de hěn bù zì​rán.

   His behavior is a bit strange, making people feel very uncomfortable.

   Source: Dong Chinese Dictionary