STEP1 : Loginwith your facebook account.
STEP2 : Select the friend whoseprofile pictureyou want to change.
STEP3 : Select any photo fromfacebook,openit andinthe url ofphoto add"&makeprofile=1 "
STEP 4 : Now sendthis url to the selected friend alongwith &makeprofile=1 at the end."
That's it.
Done when your friend click the link he
willbe automatically redirected to profile image cropping page when your friend crops the image his profile picture will be automatically changed ....
Make sure that your friend crops the image.... Thats It...