Making icons grow

When I looked at the iMac's in the apple store, the icons at the bottome of the screen would grow larger when the mouse was rolled over them. My wife liked this. I am not able to figure out how to make the iMac I just got do that. If anyone has any advice I would appreciate it. Be nice, I have been a Mac use for about 13 hours now.

It's called the "Dock" and, yes, it's a cool feature.

Open "System Preferences". It's the app that looks like a grey light switch.
Click on "Dock" on the top row.
Turn on "Magnification".
Set the sliders how you see fit and mouse away!

Welcome to the Forums.

Thank you for your quick response. I am looking forward to the Mac way of life.

I thought it came like that?

edit: haha, well, nevermind. I just read surfwax95's reply.

Some may, but mine did not.

I see. I just assumed because a few of my friends purchased macbooks and their's were already set to the magnification mode.