You think to yourself for a bit, if you put shoes on from someone else you become a carbon copy of them, so changing into someone you know, even if you like them would be somewhat strange, what if they notice? So you decided to go to the mall, maybe you could steal someone's shoes from a dressing room while they were pre occupied.
Walking around the mall you spot several people, both men and women that you would have liked to try on, but you couldn't get a single chance for any one of them. Then a thought crosses your mind, if you change into a carbon copy of the owner of the shoes, what if no one owned them? The thought was now in your head, and you couldn't get it out. Would you cease to exist? Would you just stay the same? Or would you change into someone who tried on the shoes before you? You decide that this experiment was too good to pass up and rushed to the nearest clothing store, it was actually tailored to suite a large swath of clientèle, which suited you just fine.
The dressing rooms in the back were hidden well enough that you could change and no one would notice that you changed into someone else, so you went browsing, you grab the largest pairs of men and women's shoes you could find, because why not play around a bit, you make your way to the fitting rooms, no one paying heed to you and surely no one watching.
Closing the door behind you, you take off your own shoes and put on a pair from the several boxes you have with you, they were.....