Mutter social

Social mutter: mutter to yourself, or into somebody's ear

Here is how this social looks to you and to everyone around...

On yourself: You are a small portable muttering machine! Kadm mutters away tirelessly.

No argument: You mutter something under your breath. Kadm mutters something under his breath.

On someone: You mutter something into Pirrwt's ear. Kadm mutters something into your ear. Kadm mutters something into Pirrwt's ear.