꽁초

a cigarette butt; the leftover after smoking

어색하다

to feel awkward or uncomfortable in a situation

쳐다보다

to look at or gaze at someone/something

낯이 익다

to look familiar, as if seen before

낯을 가리다

to be shy or reserved around strangers

눈살을 찌푸리다

to frown, usually in discomfort or disapproval