It's a very odd sensation. She's never woken before. Well, she's never anything before, but waking up is a very baffling first experience to have. The ground under her's not really soft, and is faintly scratchy and bumpy and gritty. The air's a fairly neutral temperature, faintly cool.
There's a rustling sound, and a trickling sound, and a chirping sound.
She opens her eyes, and the sky is blue with white, fluffy clouds scattered artfully about. There's something green framing her vision. She sits up, looks around, and can see a wide field of more green with little splashes of color stretching below her.
There's knowledge in her mind, and it's weird just knowing things. One of the things she knows is how to make sounds with her mouth, sounds that mean things. One of those things is, "Hello?"