to cheer up; to liven up; to become active
to look better; to improve (in appearance); to stand out
楽しい音楽が流れて、気分が引き立ってきました。
Fun music started playing, and my mood brightened up.
祭りの雰囲気はどんどん引き立っている。
The festival atmosphere is becoming more and more lively.
良い知らせで心が引き立つ。
My spirits pick up with good news.