Dialogue writing in KR

안녕, 얘들아.
How would you normally write dialogue? Would you add ‘said/asked’ at the end of the quotation?

I.e.
(1): "당신은 누구야?"라고 물었다.
or without it,
(2): 그는 나를 힐끗 쳐다보았다.
“당신은 누구야?”
“나는 A라고 해.”