You could use your Facebook image: Hoover your mouse over the image on your Facebook page and cut/paste the image link into this field. Drop a link into this field. PLEASE us a 200 X 200 pix image size.
Here's Jim's (outgoing speaker) photo as an example.
NOTE :: Facebook Photos are auto sized to the correct image size. If you do not wish to add a photo - no photo will show on your profile listing.