What's the sound used as an affirmative to question? I don't know how to translate these sound effects.

SharkGears said:
What's the sound used as an affirmative to question? I don't know how to translate these sound effects.

Yes? Yeah? That's right? Right? Kinda hard to say if I don't know the question.

"Mm" could work in this kind of shy docile situation, but I guess a nod might be needed for that.