"Aeigh!" Mute talking sounds.

Translation: [Hi, I'm Prince Bojji!] Kage translates as he somehow has the ability to understand Bojji without sign language.

Bojji seems intrigued to meet someone new.

"Owah ah!" Bojji blurts out again.

Kage translates it again for you.

Kage: "He said he wanted to know your name."