2 sentences

1. 他性格温和，对待同事总是客客气气的。

   tā xìng​gé wēn​hé, duì​dài tóng​shì zǒng​shì kè​kè​qì​qì de.

   He has a gentle personality and is always very polite to his colleagues.

   Source: Dong Chinese Dictionary

2. 他表面上客客气气，实际上是在虚与委蛇。

   tā biǎo​miàn​shang kè​kè​qì​qì, shí​jì​shang shì zài xū​yǔ​wēi​yí.

   On the surface he was polite, but in reality, he was just playing along.

   Source: Dong Chinese Dictionary