キラキラ

adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'

glittering; sparkling; twinkling

Describes light reflecting off small surfaces in a bright, cheerful way. Often used for stars, jewelry, water, or eyes. Can be used adverbially with と or as a する verb.

• 星ほしがキラキラ光ひかっている。

  The stars are twinkling.