"I'm not a person, but most people can't tell that at a glance." Sure, she's a bit pale, but she goes to the trouble of looking like this for a reason. SHe doesn't want to unsettle anyone.

"I don't have to, but I like to. I really enjoy tea, especially the smell. DId you manage to get around the physics?" It's certainly possible, but she usually tries to be polite about things like walls.