Cloning this repository:

git clone git://gitorious.org/~lelouch/gnome-design/lelouchs-gnome-design.git lelouchs-gnome-design
cd lelouchs-gnome-design

Add this repository as a remote to an existing local repository:

git remote add lelouchs-gnome-design git://gitorious.org/~lelouch/gnome-design/lelouchs-gnome-design.git
git fetch lelouchs-gnome-design
git checkout -b my-local-tracking-branch lelouchs-gnome-design/master_or_other_branch