look for & find

X What are you finding?
O What are you looking for?

  "무엇을 찾고 계세요?"
　

X I'm finding my pen.
O I'm looking for my pen.

  "제 펜을 찾고 있어요."
　

X Did you look for it?
O Did you find it?

  "찾으셨나요?"
　

▶ look for는 찾는 "과정"에 대해서 사용하고
▶ find는 "결과"에 대해서 사용합니다!!
e.g.
I'm looking for my friend."과정" ⇒ I found him. "결과"