Wiktionary
twinkly-eyed
a. (context idiomatic English) happy, of a happy character.
Usage examples of "twinkly-eyed".
That you was all twinkly-eyed as you was invited up to meet the Minister?
When the slightly chubby, twinkly-eyed man stepped out of the elevator with Bobby Dubois into the windowless sub-basement, he halted in his tracks and gazed at Eve as a starving man might have stared at a bowl of peaches and cream.
Where McCain comes off almost brutally open and direct, Murphy's demeanor is sly and cagey in a twinkly-eyed way that makes you think he's making fun of his own slyness.