Your name is Eric; age 21. You've slightly brown skin, a pointy chin, and curly black hair.
Mere minutes after obtaining your mind-control power, you've got a rough idea of how you'll want to use it. A trip to the 24-hr pharmacy would have to be made, first, to get your hands on the necessary supplies.
*A package of youth diapers--able to fit a child
*A package of adult diapers
*A tub of wipes
*A bottle of baby powder
*A diaper changing mat
Bringing these items up to the counter, the cashier didn't seem to take much notice of what you were purchasing at first, but when she saw that you were getting two different sizes of diapers, she cocked her eyes at you for just a second, but immediately looked back down and got back to scanning your items.
"Are you uh, sure you don't wanna get a pacifier too sir?" The lady chuckles.
You roll your eyes at her. Oh sure, that was just a little casual, fun joke. Nothing too serious. So hey, might as well play a harmless practical joke on her as well, right? You grab a piece of paper and a pen and start writing something. The lady--nametag indicating her name to be "Sera", and appearing to be somewhere in her twenties and presumably older than you--bags the last of your items and asks you for the card.
As you slide the card through the device, you look up at her.
~You will wet the bed every night for a month~
She stares back at you, appearing to understand you.
~Also, take a photo of the soiled sheets and PJ's every morning~ you slide the piece of paper over to her ~here's my Snapchat~
She takes the paper and promptly stuffs it into her back pocket. It's a little surreal how casual and organic she acts as she does it; it doesn't look like her personality is being temporarily overwritten to become subservient to you or anything dramatic like that; it merely looks like Sera--the real Sera--decided to accept your instruction out of her own free will, yet somehow without being aware of hearing the instruction.
----
Your supplies in hand, you have no other option but to make a decision on where to go, and whom to experiment with your sapphire on.