Klingon: "Do you think if we stand here too long we'll get burnt by the sun?"
Kirk: "Not a chance."
Spock: "Uh...Captain?"
or
Scotty: "So he said, if you can't stand the heat, get outta the engine room!"
Kirk: (laughing) "That's great, Scotty! Way to go!"
Spock: "Captain, I think he was trying to tell us something."
or
"So after we've laughed this alien off the ship, do you want to go back to killing each other anyway?"
"Sure, why not?"