Trope Workshop:Expressive Grunting

Most living beings are able to communicate a lot of things with simple body gestures. Many choose to do so in the form of grunting, a low, guttural noise in the throat.

Depending on the context, it can communicate joy, satisfaction, acknowledgement, or any other emotion one wishes.

Live Action TV

 * Odo from Star Trek Deep Space Nine usually communicated many of his emotions via grunting noises, though he was perfectly capable of speech.

Video Games

 * In Minecraft, villagers communicate entirely by grunting, and the tone usually indicates their moods.