Nimiko
Thanks to her countless years of experience, Nimiko wasn't that surprised when the spirit appeared in front of them both. It seemed that Giovanni had the opposite reaction, which made Nimiko chuckle. Though, what Nimiko didn't expect, was for them to be so humanoid, or so fully formed. From Nimiko's own experience in Hel, the dead typically appeared much mistier and very skeletal in form. While humanoid, sure, they were typically unrecognizable from themselves when alive. The spirit seemed to appear feminine, and actually quite pretty. Perhaps they were a human at some point? Nimiko could only guess, unfortunately.
Nimiko watched the girl's lips move as she apparently spoke, but it seemed no words came out. Unfortunately, despite her age, Nimiko never learned to read lips. "Oh- Hello there." Nimiko looked back at Giovanni, who seemed to be just as confused as she was about what the girl had said. "I assume you're the one who's drawn our attention to this forest. By the sound of it - well, lack thereof, are you unable to communicate to our realm? Nimiko asked the girl, who stood much shorter than the pair of them, though, that wasn't very surprising.
------------------------------------------------------------------------------------------------------------------------------------------------
Mori
After the visible and audible confusion from the pair in front of her, Mori remembered that she couldn't communicate with people like she used to. This was the first time in practically 200 years that Mori had interacted with anyone at all, so it was understandable that she'd forget, especially since she typically just interacted with animals. She had to think to herself for a moment, before being interrupted in her thought with the girl with similar hair to her saying hello and figuring out the situation pretty quickly, which surprised Mori.
Mori waved back to the girl with a smile on her face, and then waved over to the giant dragon dude behind her, before returning to her thought. Then an idea popped into the spirit's head. She'd have to potentially spell out her name with her abilities. With that thought, she waved her hands around, and the plants responded, slowly growing and weaving their way, vaguely into the shape of letters, spelling out "M O R I".