Often movie or television cartoons show fireworks to represent the excitement of a kiss.

VOA: special.2009.07.05

So adds a little excitement or a little filler to the music sometimes.

有时演奏音乐时,要带上点激情跟内涵

耶鲁公开课 - 聆听音乐课程节选

The fact that the show is now coming to an end, and we're ending it on our own terms as opposed to the show is being canceled, or went on three or four years after it should have, really generates this tremendous excitement."

VOA: standard.2010.05.25