Unity is the default Ubuntu GUI. Do nothing, but install UBUNTU 12+ ... login to Unity.
But, if you download Gnome then after boot, clicking a **choice-icon** will present you with GUI options of Unity and a couple variants of Gnome ... before you login.
Running U_12.04 I prefer Gnome and **hate** Unity, but after each boot the choice is available. **NB** in the login screen the stupid "choice-icon" looks like a decorative snark: it is NOT labled **choose GUI here** ... insane.
ChewbaccaBreath :
I was wondering what Unity is on Ubuntu. I heard about Unity and Gnome and all this other stuff and I'm an Ubuntu noob so can somebody help me please? thanks! Also if I do get My Unity how can I go back if I don't like it.