In an ideal world? Classy suit, shiny shoes, sunglasses and a serious expression. In reality... The same kind of lose-fitting trousers I enjoy wearing, and one of my cute t-shirts but in male size. I'm a pretty lazy girl, and I can't imagine I'd be any less lazy as a boy. Best part is, I could totally cut down my time spent in the bathroom because I'd be able to stand and pee! Who cares if I miss and make everything disgusting, I don't have to sit down on it! Unless nr. 2, which is why I would always sit down while at my own place, and only stand while at a friends house. Just like my friends do. Damn them... Also, no bra = wins.
I can't recommend the corset tops personally. I'm kinda into that type of clothing, but first of all they are really uncomfortable and they also tend to look kinda silly unless you have the ideal body for it... Then I'm also extremely paranoid about showing too much skin and wouldn't wear anything that didn't cover me up to my neck area.