'순하게 생겼다는 이야기를 많이 듣는데, 드럼 스틱만 쥐면 눈빛이 달라진다.' => (lit.) I often hear comments that I look obedient, but my eyes start to flash once I pick up the drumsticks. => People tell me I appear meek in temperament, but I feel transformed once I pick up my drumsticks. - [[순하게 생겼다]는 이야기]를 많이 듣는데 = I often hear [comments that [I look meek/obedient in temperament]], but ... - 드럼 스틱만 쥐면 = once I pick up my drumsticks. - 눈빛이 달라진다 = the look in my eyes changes (idiom) -> (I) become a different person . One small flaw is that 눈빛이 달라진다 sounds a bit unnatural if you use it to describe yourself.