Why would you want to do this? Well, because it's fun! Be warned though, it can become addictive.
This effect works best if you use an image you've taken looking down onto a scene as this is how you would view a real model. Cities, roads and railways all work well just make sure you have a wide view.
Step 1: Quick Mask Mode
First you need to be in Quick Mask Mode which you can do by pressing Q on the keyboard or clicking the icon in the tool palette. Then select the Gradient Tool making sure the Reflected Gradient option is selected. Then from where you want the focus to be, draw a straight line to where you want the out of focus part to end. This can take a while to get right and you can find yourself going in and out of Quick Mask Mode and starting again but don't give up!
Step 2: Exit Quick Mask Mode
Exit Quick Mask Mode and now the areas that were red should now have marching ants around them. Inverse your selection by going to Select>Inverse then go to Filter>Blur>Lens Blur to blur the areas of the photograph you don't want the viewer to focus on. If you're happy with the look press OK or have a play around with the sliders to see how it changes your photograph if you're not completely happy with the way it looks. Then deselect your selection by going to Select>Deselect.
Step 3: Increase Saturation
As models are usually shiny you can boost the colours by changing the saturation. Go to Image>Adjustment>Hue/Saturation and increase the saturation until you're happy your shot looks more model like. To further enhance the look double click on the layer so the Layer Style opens up and click on the Gradient Overlay option. A dark to light gradient works really well but make sure the blend mode is set to overlay otherwise the gradient will hide your image. Have a play with the opacity slider and angle options until you're happy with the look then click OK.
You've read the article, now go take some fantastic images. You can then upload the pictures, plus any advice and suggestions you have into the dedicated Photo Month forum for everyone at ePHOTOzine to enjoy.