This is not technically cropping, because you cannot not resize it. You can move the circle up and down or left and right, depending on the orientation of your photo. You want to get the important part of your picture inside the circle.

If your photo is not fitting nicely, and using this 'crop circle' does not give you what you want, just upload a new picture. By the way, the best type of photo to use on your people record is one that is head and shoulders...not just a head, and not an entire body.

Click on your photo to edit. Move the circle until you are happy with the way it looks. Then click Save Crop.