BEFORE & AFTER:

Im going to use this picture (x)
Step 1: Open up your photoshop and then your picture.
Step 2: click THIS tool. and then click that tool on the person like THIS.
Step 3: if the selection goes out of the person, subtract the selection using THIS tool. you can find it at the top of photoshop.
Step 4: After you’ve finish. right click>select inverse like THIS. your result will be like THIS
Step 5: Then go to filter>blur>gaussian blur. like THIS
Step 6: THIS should pop up. Now you can adjust the blur. for me i use 3 pixels. thats up to you to choose. (x)
NOTE; after you’ve done. just click file>save as. dont mind the dot that’s moving (i dont know what is it called) it will work just find :)
MY FINAL RESULT:

you’re done! like this post if this help you! if you have any difficulties just ask me.
Tut from fyeahtutorial.tumblr ths you ^^