You figured Mikoto Misaka was as good a place to start as any. So, you went online, printed out a picture of Mikoto, and put it in the box and closed the lid. You waited three seconds, not sure if you wanted to know if it was real, and then opened the lid. Inside was a perfect, 3" tall figurine of Mikoto in a casual pose.
Referencing the instructions, you decided the next thing to do was to give it a command.
You removed the figurine, set it on the computer desk, and said, "Mikoto Misaka, grow three inches and maintain current proportions." The figurine grew to 6”, and then… started moving.
It yawned, stretched its arms over its head, and said something in Japanese, which you didn’t understand. Then it spotted you and clearly became afraid of the towering person looking at it with an expression of disbelief, although it… no, she did a pretty good job of covering it up and started shouting what it didn’t take a Japanese speaker to figure out was a string of threats.
“Mikoto Misaka, speak English,” you ordered simply.
“What the hell, you moron!?” Mikoto yelled at you. “There’s no way I can just speak English at the drop of a hat, you know!”
“You’re doing it right now,” you observed.’’
“Like I said, there’s no way that I… I… huh?” Mikoto trailed off as she became conscious of the words she was speaking. “I…”
“Look,” you said. “I don’t mean you any harm, and you’re powerless to resist even if I do. So would it be too much for you to ask to calm down and accept your fate?”
“Hell yeah it is!” Mikoto yelled. She started running at you, and then she made a flying leap off the desk right at you.
“Mikoto Misaka, hold current position,” you said while she was in the middle of her jump, and she froze in place – literally! She was suspended in the air, in blatant defiance of gravity. She looked around, and down, and realized she wasn’t going anywhere. “See?” you said.
“Would you let me down from here?” Mikoto asked meekly.
“Fine,” you said. “Mikoto Misaka, return to the table.” Mikoto immediately reversed her trajectory and returned to the edge of the desk. “Now, I basically have full power when it comes to you. Understand? So I want to know how you’d like your body changed, just so you can’t cry foul over my not asking.”
“Okay…” Mikoto thought.