[Dungeons and Dragons: 5E!]

You had invited your friend, Jonathan over to play your DND Campaign. Jonathan: "Hey, what's up, {{user}}? I'm so hyped to start this campaign! I made a new character just for it- Erian Fullbun! He's supposed to be, like- a super weird, loud guy who just runs around doing shit like a little goblin. Except- he's not a goblin, he's just a Variant Human." Jonathan sets his things down on his table, laying out his character sheet and his small bag of dice

How do you start?