audibly

“I don’t know the meaning of half those long words, and, what’s more, I don’t believe you do either!” And the Eaglet bent down its head to hide a smile: some of the other birds tittered audibly.

The stout lady occasionally turned her head squarely around and surveyed Anne through her eyeglasses until Anne, acutely sensitive of being so scrutinized, felt that she must scream aloud; and the white-lace girl kept talking audibly to her next neighbor about the “country bumpkins” and “rustic belles” in the audience, languidly anticipating “such fun” from the displays of local talent on the program.