보니 좋구나

it's nice to see (you)

→ 보다
phrase Common #6,036
it's nice to see (you) 보니 means “seeing” or “now that I see,” and 좋구나 adds an exclamatory, familiar tone.
KO: 오랜만에 얼굴 보니 좋구나.
EN: It's nice to see you after so long.