Photoshop Tutorial: Faking Depth of Field
Final Result

Faking Depth of Field is a great way to focus on one element in your image.
Step 1

First open your image into Photoshop. In the layers panel select your image layer and duplicate this (Ctrl+J). Then turn the visibility of the top layer off by clicking the eye.
Step 2

Select the bottom layer, that still is visible and go to Filter>Blur>Gaussian Blur. I put the radius as 3.0 pixels, but you choose what is best for your image. You don’t want it too blurry.
Step 3

Now put the visibility back onto the top layer and select it. Click on the eraser tool and make the brush about 100 px, with 0% hardness. Remember this is just a guide, you may want to make your brush larger or smaller, depending on your image size.
Step 4

Now put the flow down to about 5%.
Step 5

Still selected on the top layer with your eraser tool, start erasing some of the background of the image, revealing the blurry image underneath. By leaving your foreground untouched you give the effect that are focused on that part of the image. This technique works on most images, so give it a go and enjoy!

Thanks, great tip!!!