File1303659842.jpg-(114 KB, 420x850, 1254075195494.jpg)
Through his action he was able to learn quite a bit, at least give us a heads up to know what we were dealing with before she struck. From his time spent with her, he was able to discern more about her, based on the description that her player gave as to how she appeared showing up to the party, by showing us pic related. Essentially, this was the appearance she would come to adopt, and to this day appears like this.
Of note, before this, as stated she had only managed to acquire the basics, enough to get her walking again and a bulky, unwieldy arm replacement. In being so close to her at the party though he was able to see that her new arm was of a much better build, apart from the appearance pretty much exactly the same shape/size as the arm she lost. As well, at the part in their dance where he leaned her down to the floor, he was able to tell one of her eyes was replaced, and as well her body was much, much heavier than it should have been. He was a pretty strong, fit guy, but he had trouble keeping ahold of her and lifting her back up. Lastly he was able to tell from her movements that she must have had some sort of leg enhancement. He couldn't see through her dress, and any other time she moved and appeared completely normal, but in the complicated steps involved with dancing, she had trouble managing.
So for the next few hours he basically stuck to her like glue, trying to find out what he could about her. Already he had discerned much about her physically, but was able to pass off questions about it as curiosity, and further attempted to learn about her motives without appearing suspicious.