whistled

the coach whistled to signal the end of practice.

she whistled a tune while walking down the street.

the referee whistled for a foul during the game.

he whistled in admiration at the beautiful view.

the train whistled as it approached the station.

she whistled to get his attention.

the wind whistled through the trees.

he whistled a happy song while cooking dinner.

the crowd whistled in excitement as the band started playing.

she whistled softly to calm her nervous dog.