twinkle
twin-kle
noun
A sparkling or flickering light, often a gleam in someone's eye.
"She had a mischievous twinkle in her eye."
verb
To shine with a rapidly flickering or sparkling light; to gleam.
"The distant stars began to twinkle."
Thesaurus
Synonyms: sparkling, scintillation, scintillate, winkle, blink, flash, wink, spark, light, sparkle