Who is this nice girl?
August 22 source
She smiling because she doesn't knows what we will do with her photo
Poor girl...

Yes, she is very beautiful!!!

Till now...

funny , image was already "retouched", blurred the background with lasso tool I think.
sorry author

Should''ve left untouched, how was originally taken, with that large dof, to have clear crisp hair strands.
We are plenty in here to ruin the photo afterwards, no stress

http://www.canoncompact.com/shooting-tips/how-to-blur-background

Everything is possible nowadays...

Well, in this case it's a "natural blur" provided by positioning and aperture, as much as that camera allows, no software involved. But in case of the above mentioned picture, it's obvious how the blurred selection in PS (or else) bleeding over the crisp details on the same focus plane. u can check the actual beckground through her hair, where was the missing selection.
I'm sorry Tes, you cannot excuse the author tho I guess he/she would appreciate your try

Shes a purdy one she is

Forget the hair, the worst part is how the background is blurred over her left arm. Not lasso tool, I think the blur brush was used... Sloppily.

Blur?
It's just a thick fog