口嫌體直

your lips say one thing, but your body language reveals what you really think (four-character version of 口嫌體正直|口嫌体正直[kou3 xian2 ti3 zheng4 zhi2])

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

to dislike / suspicion / resentment / enmity / abbr. for 嫌犯[xian2 fan4], criminal suspect

body / form / style / system / substance / to experience / aspect (linguistics)

surname Zhi / Zhi (c. 2000 BC), fifth of the legendary Flame Emperors 炎帝[Yan2 di4] descended from Shennong 神農|神农[Shen2 nong2] Farmer God

straight / to straighten / fair and reasonable / frank / straightforward / (indicates continuing motion or action) / vertical / vertical downward stroke in Chinese characters