So, if you haven't already, install the Layar Reality browser on your iPhone or Android phone. Search for 'min-e-art', or go to the 'Art' category. Select the PeRSoN.NeL layer and you are good to go. (direct link)
By default a random min-e-artwork is selected as 'your' min-e-art. You can choose another by clicking on 'My min-e-art' in the description of the image. Now that you are 'virtually decorated' others can see you and your min-e-art approaching through this layer and you can check them out as well.