She figured he wouldn't have actually believed her if she'd just told him she was solid again, but she hadn't really stopped to think. When Sally saw Josh, she wanted to hug him. She loved this place, she loved being real, but having Josh here just made it so much better and she hugged him for all she was worth.
"They think it was the portal, magic," she explained, laughing at his obvious confusion. "I still have all my ghosty powers, but I'm alive again, Josh. I can hug and I can eat- I can do everything you can do. Well, except for that wolf thing, but that's okay, you can have that one."