装出

pretend to be

→ 装
phrase Rare #27,669
pretend to be Often followed by a description of the appearance or manner someone is pretending to have.
CH: 他装出很开心的样子。
EN: He pretended to be very happy.

不得不装出无情的样子

I have no choice but to pretend to be heartless.

— 天空之城 (1986)

别抬头要装出没事的样子

Don't look up—act like nothing's wrong.

— 虎口脱险 (1966)