How preposterous! I've never thought Yukari would ramble about seeing the dearly departed but she has. Of course, we all can see Yuyuko, because she is a different sort of ghost, but the others we can't really see, only hear their voices. However, Yukari also isn't right in the head, so those could be deliriums and fever dream, something to those sorts. On the note of thinking about Yukari talking to ghosts, I do find that a tad disturbing to see her engage in chats with something that isn't there. Actually, everyone but Mary, Wren, Yuyuko, and Reimu seemed to be frightened to see her do so. Nevertheless, I still think she is in a state of delirium when she does that, so thinking that does take some of the fright away. On a note, it does make it interesting.
I caught her talking to the dearly departed and I couldn't help but to watch. "Hello again, Marisa." she said, to the space in front of her. The space said nothing. "Yes, Reimu is doing well, thank you for asking." she responded to the silence. After about five or so minutes, she laughed and said, "That's good and I'll to tell Reimu the joke." Apparently, Marisa's ghost was telling her a joke and was asking how Reimu was doing. It seemed to be a fairly casual conversation. If Yukari really was seeing and speaking to ghosts, then they must only show themselves to her.
We never did really see or hear them for ourselves, so it remains unclear if Yukari really is seeing ghosts. Nevertheless, it is interesting.
"How long has Reimu had that sewing pin been stuck in her hand?"