[Sure enough, here's reason A for the teddy invasion. This girl is being guided by the Usyagi towards the café, and her confusion at finding herself in this world is diminished for a while as she coos at all the bears around. If her reaction isn't enough to show she likes them, perhaps the little bear pin that's still held on her clothes will clue you in.
Of course, the whole thing does seem suspicious, and as cute as everything is (she'll have a proper uwahhh reaction to the Café itself), she's wondering why she's there, and what the point of all of this is. Surely it can't be Eriol's magic again, right? It's a different feeling.]