It was me last night.That was me for most of 3e!
Group was moving thru a crowd when someone sneaky in the crowd got close enough to whisper to one of them. The others who made a certain degree of perception were close enough or looking in the right direction and not next to someone else bring loud in the chaotic scene to notice it and maybe hear what was whispered.
The die roll covered the uncertainty in the scene and their own perception scores (and languages) made a difference.
Now, whether or not those who heard it, saw the speaker or understood the Message choose to share it is up to them, but at the table, those who made it saw meaning in having done so.