"No, it's bloom," hastened Cornelia, covertly wiping it off.
But he might covertly reveal himself to one who understood him well.
She watches him covertly, uneasily, longing for the end of the run.
I answered this by some sort of grunt, watching him covertly.
"Thanks for the invitation," he said aloud, as he covertly nursed his right hand.
Opening one of them, covertly, ...