It took me a lot time to understand how many users twisted their clothes and wear them this way.
Talking with a friend today , I kinda understood the way , so I thought it will be great for you to know too.
First go to one of your Flashy Suites ( Beach Villa , Albine Chalet etc)
Place your doll on the arrow like in the first picture , and twist your clothes however you want.
Then quickly drag them onto the arrow and leave them down there , like in the second picture.
Finally move your doll with the clothes on and place them as you wish!
I hope you find this useful!