You are "in"

Hazel would play as a model in the show of American Top Model or A Project Runway. At the end, the host would announce who is staying in the contest as saying "You are in". It is fun for me and her playing the game over and over again.
If i didn't tell her she is in, she would go to change another clothes. Funny. It is a trick for us to ask her change the clothe. Otherwise she is not crazy in changing clothes showing us how does the new clothe look on her.