How could i jailbreak my iphone 4 (6.1.3)?

I want to jail break my phone, what the easiest way to do it?

Throw your iPhone 4 against the wall then hit it with a hammer.
Proceed to store to purchase an android.

Go to jailbreakme.com and it says you have to use Evasi0n to jailbreak it so just download that and it should tell you the steps! But remember Jailbreaking is extremely dangerous and there's a high possibility you
Might lose your phone!