As well as killing monsters, finding treasure, going on quests, etc.. there are several professions you can try. These are often a good way of giving yourself an extra advantage or making some extra cash. We are planning on adding more skills to the game over the coming weeks.
To build a fire
Buy an axe, and use it on a tree to get some logs.
It may take a few attempts to chop the tree down.
Drop the logs on the ground, and use a tinderbox on the logs to light the fire.
The fire will last several minutes and can be used to cook meat (see below).
Meat can be obtained by killing certain animals and monsters.
Use the meat with a fire or a stove to cook it.
Right click on the meat to eat it, and restore some lost hitpoints.
You may accidently[sic] burn the meat, but your cooking will improve with practice.
First you need some grain which can be picked from one of the wheat fields.
Take the grain to the windmill where you can grind it into flour.
You will need to use a pot to pick up the flour you have made.
Buy a bucket or jug, and fill it with water from a sink or fountain.
Mix the flour and water to make some dough.
Cook the dough by using it with a stove.
You may accidently[sic] burn the bread, but your cooking will improve with practice.
First locate a rocky outcrop, these are scattered at various points in the world.
Prospect the rock to determine what ore it contains by right clicking on it.
You will sometimes fail to find any ore in the rock, so examine it a few times.
If the rock contains no ore you will always fail to find anything.
Once you have located an ore, use a pickaxe with the rock to extract it.
Take your ore to the furnace to smelt it into a bar of metal.
There is a furnace in Lumbridge near the starting point.
Use copper and tin ore in the furnace to make a bar of bronze.
Use iron ore in the furnace to make a bar of iron.
As your smithing skill advances you will be able to smelt several other metals.
Forging weapons and armour
First you need at least 1 bar of metal and a hammer.
Go to the forge in Varrock, where there are 2 anvils.
Use the bar of metal with the anvil to make an item.
Large items require more than 1 bar of metal.
To start with you will only be able to make simple items like daggers.
With practice your ability will advance so you can make more expensive items