만 보면

just by looking at

→ 만
phrase Common #3,120
just by looking at 만 means “only,” and 보면 means “if you look” or “when you look.” Attach 만 to the thing being looked at.
KO: 사진만 보면 그곳이 어디인지 알아요.
EN: Just by looking at the photo, I know where that place is.

아니, 영화만 보면 골치가 아파!

No, I get a headache whenever I watch a movie!

— 해피 투게더 (1997)