You press the 'quote' button at the bottom of a post, copy all of the text, go to user CP > change signature and paste into the box.

You'd be better off asking questions like this in the newbie forum in the future though
The will to neither strive nor cry,
The power to feel with others give.
Calm, calm me more; nor let me die
Before I have begun to live.

-Matthew Arnold

Arguments are to be avoided; they are always vulgar and often convincing.
Quote by soulflyV
Step 1. Find sidewalk.
Step 2. Slam head into sidewalk.
Step 3. See statue of Liberty and realize planet of the apes is actually earth.
Step 4. New Members Forum.

Our hearts are with Nick Grundy.
Quote by Ez0ph
I think AvengedThrice is pretty cool guy, eh raeps kittens to death and doesn't afraid of anything.

He knows me well..