라고 재다

act stiff because of something

재다 in this frame is putting on airs or getting self-conscious about something. The only line available reads 방송이라고 재지 말고 — don't get stiff just because it is being broadcast — and it is repeated four times, so there is really one piece of evidence here. That much can be established; the wider range of the phrase is not shown by these examples.

The examples below did not fully pin this one down — read them before relying on the entry above.