3 sentences for 热闹 (rè​nao — spectacle)

1. 大家都在街上看热闹。

   dà​jiā dōu zài jiē shàng kàn rè​nao.

   Everyone is on the street watching the spectacle.

   Source: Dong Chinese Dictionary

2. 他抄着手，冷冷地看着热闹。

   tā chāo zhe shǒu, lěng​lěng de kàn zhe rè​nao.

   He stood with his arms folded, watching the scene coldly.

   Source: Dong Chinese Dictionary

3. 听到喊声后，大院里很快就聚集了很多看热闹的人。

   tīng​dào hǎn​shēng hòu, dà​yuàn lǐ hěn​kuài jiù jù​jí le hěn​duō kàn rè​nao de rén.

   After hearing the shouts, a large crowd of onlookers quickly gathered in the courtyard.

   Source: Dong Chinese Dictionary