Eleganthriel's Quick Guide

Just spawned
You should press I, craft the item in your inventory. Then you should head out, kill some mobs and get money from human npcs (E to loot).

You should gather any wood (E to harvest) because it's the most important ressource in the game.

What next
If you got some woods find the forge and craft some clubs. Best quality is +6. Pole recipes is sold by the main merchant.

Fighting human npcs
You can fight fairly high levels human npcs if you use your shield and shield, blocking their attacks.

Then what?
Then you go kill stuff, grinding xp. Then you can read my other guides and get into crafting better gear.