Acting is a really simple job - it's just hard to do. You just have to be that person with their background in that situation. That's all it is. My kids do it all the time when they're dressing up and playing games.
I used to work, part time, in a deli, in those days when your parents made you work just so you should know what work was like. And you'd make 4, 5, 6, ten dollars.