not turn a hair
let your hair dry 别那么神气,;别那么拿架子 not turn a hair (=without turning a hair) 不动声色;泰然自若 out of one's hair 使某人不受打扰;不惹恼某人 ..
Deadpan
不动声色的(deadpan), 此释义来源于网络辞典。
keep one's countenance
...ards close to one's/the chest (参见「守口如瓶-- keep a quiet/still tongue) 不动声色;泰然自若 keep one's countenance; play it cool 创业不易,守业更难。 Keeping is harder than winning.
"不动声色"是个多义词,它可以指不动声色(汉语词语),不动声色(刘惜君演唱歌曲)。