The boy in white clothes, white hair and red eyes laughs in delight, happiness, excitement, like the world was so funny and fun to him and there's not a single worry he could be thinking of.

HAHAHA! I FEEL SO FREE! Hey you, look what i can do! He talks to you, eager to show you his abilities, he can barely contain his eagerness as he is literallt shaking out of impatient and anxiety.