To start life, you need to know the art of living.

Breathing-this is very important to live. It fills your lungs with air, which helps you to well... breathe.

Eating-
This is also very important. You need to be nourished,  and you need to fill your stomach.

Sleeping-
Sleeping is a very beautiful thing.  You can imagine anything when you sleep. Sleeping also helps you remember things.

For demigods

Sword fighting-
This is very essential when battling monsters. Monsters are every where.  Beware! Beware!

Having friends-
If everyones your friend, you'll have less enemy's.

Overall,  these are the base ways to living.