quietly

with low volume; "speak softly but carry a big stick"; "she spoke quietly to the child"; "the radio was playing softly"

with little or no sound; "the class was listening quietly and intently"; "she was crying quietly"

with little or no activity or no agitation (`quiet' is a nonstandard variant for `quietly'); "her hands rested quietly in her lap"; "the rock star was quietly led out the back door"; "sit here as quiet as you can"

in a restful manner; "the streets are restfully sunny and still for the town is at mass"