You take the device out of the closet,
You look at the back of it, there is a manual printed on the back
1.turn on
2.select a person by face scan or find in the database by details
3.modify the appearence
Interesting - you say
You click the button on the side to turn it On
A bright screen menu appears, it says to choose a person, you select face scan, and the front camera takes a picture, you see yourself, then it beeps, and a text appears "modyfying , jacob smith"
Damn, it got it right-you are impressed
Then a menu with appearence sliders shows up, there are various options, hair color, height, gender, muscularity, interests...
You start liking it, the first thing you want to change is...