눈치를 봐요 · 눈치를 봤어요 · 눈치 보지 마세요
to watch someone's mood, to walk on eggshells, to worry about others' reactions
Example
신입 사원이라서 아직 상사 눈치를 많이 봐요.
I'm a new employee, so I still worry a lot about my boss's reactions.
Word parts
Literally 'to look at someone's mood.'
Good to know
눈치 보지 마세요 is a kind way to say 'Don't worry about what others think.'