Then you get into the details of your character. Like height, weight, name, background, etcetera. There's a few backgrounds in here, but honestly I don't care so much about being a stickler for only using the backgrounds in this book. If you want a different origin story and you can come up with a couple of skills that you'd have because of it, I'll go for it.

[Life's too short to chain yourself to the phb.]