I guess I'll share my secret to beautiful skin. I'm tire of seeing people use the blurring tool alone, it just looks horrible and unnatural.
Here's my target, the always beautiful Jessica Biel

Before we start, I recommend you use the healing tool to remove large moles, red spots and things of that sort. (if you guys don't know how to use the healing tool than you are missing out on a lot!) For Jessica I'll just leave her alone.Also duplicate your picture unto another layer before you start.
1. Go to Filter, Noise,
Dust and ScratchesDepending on the size of your picture your radius might be different than mine, but try to make your picture kind of like mine. Leave threshold at 0.

2. Go to Filter, Blur,
Gaussian BlurJust like above make it like mine, your radius # may be different.

3. Go to Filter, Noise,
Add NoiseAdd enough noise so it kind of look like skin but not too much.

4. Here's the fun part. Go to Layer, Layer Mask and choose
Hide all
5. Change your foreground color to White and your background color to Black. Use the paintbrush to brush all over the skin avoiding the eyes hair and anything you don't want to blur out. The white color will paint the area of the face that you want airbrush and the black will restore any mistakes you make. Yes it looks fake and real noticeable but we can make it more realistic.

6. To fix the problem above just change your opacity level to where you like it and that should do it. I drop mine to 50% and there you have it.
