How do you get photos off someone elses profile on to your own facebook profile?

There is no way to do this directly on facebook, you have to right click the image and save it to your computer then upload it onto your account

you can do it directly on face book by going to the persons profile. click on photos and under the photo you want press "tag this photo". then tag yourself. after your done with that go to your wall and go into the picture and press " make profile picture". after you crop it your done