What would your reaction be if you accidentally hugged Yuki, Kyo and Shigure and they turned into animals?
Well, Tohru's reaction was to ask what happened, and freak out a bit. I would freak out, ask what had happened and probably just stare for a while, trying to make sense of what happened. After a while, I would probably just try to be polite, especially if the animals talked to me. I would most likely apologize, and I would try to act as normal as possible. But Tohru's reaction was funny when she asked if she pressed the wrong spot and turned Kyo into a cat.