Winona simply touching the patch would do nothing, but when Lotte turned her hand over and pressed the patch to the back of her palm was when something happened. Like the drop of a pin, it felt like Winona's hand had been placed in a bowl of warm water, the warm feeling traveling up her arm as it started to change. She'd feel an odd mix of her body being covered by a thin layer of something, and yet nothing was blatantly appearing. One of the most striking of the changes however was an increase in height, the patch seemingly able to alter her height, making her about five inches taller than EMily, yet this didn't affect her balance at all. Fortunately for her, her clothing seemed to be affected by this apparent change as they were altered slightly to accommodate her new found height. The last thing Winona would notice on her own was her ears had gotten longer, much longer, even a bit fuzzy. If she reached up to them, she'd find they had grown into long rabbit ears that pointed straight up, and had a colour similar to her own hair colour. Without a mirror, Winona wouldn't notice anymore changes until she started speaking.
EMily would however notice one more significant change, Winona, was looking quite a bit more tomboyish than Gwen could ever match. If not for the maid dress, EMily could have easily mistaken Winona for a fairly handsome guy, feminine maybe, but definitely a guy. If Winona said anything she'd be greeted with a much deeper voice than she was used to, although still carrying her usual quiet tone. The main reason Winona wouldn't have noticed such a drastic change was mostly due to the changes being cosmetic in nature, she was still a female underneath her maid outfit.
"Man, you really model that costume well!" Lotte announced with a big smile, looking quite proud of herself and her workmanship. The patch was still stuck to Winona's hand, and if she pulled it off once the changes were done, she'd revert back to normal.