A man is putting wall paper on the wall, he is trying to measure it just right so that it is even with the rest.  He cuts some of the paper and takes the plastic part off of the back so that it is sticky and begins pressing the adhesive side down on the wall.  He starts to add pressure to it so that any bubbles get out and it looks nice and even.  He stands back to look at the wall and make sure it look good, then shows a before and after photo.