This is her normal "Huuh-?"

Huuh-?

Just being an active listener, but might also mean her mind is wandering.

Especially when she's with me.

Huuuh-?

Oh, the bad mood "Huuh-?"

Ya can notice it's a bit longer, like she's really tryin' to sound threatening.

Lay it on thick, hit'em with that glare.

The good mood "Huuh-?"

Huuh?

She's thankful for the gift, but doesn't wanna let her guard go down. Trying to maintain her authority, like "Huuh? What's this supposed to be?"

Playing it cool, but will get giggly once she's alone.

Not the case~

And you, Aya!

Goes to show they're all just amateurs!

It's better if only I get it.