With the new rules in effect you might want to know how to blur a face in Photoshop. This is actually surprisingly simple!
Open the image in Photoshop and select the "Marquee" tool. You can also do this by clicking "m" on your keyboard.
Select the part you want to blur. Simply drag the selection tool around it.
Once selected go to Filter -> Blur -> Gaussian Blur -> set the radius to "10.00" and click "OK".
That is all! Save your image and you're good to go!