From your smart phone go to Facebook, and go to post a comment, after doing this hit the camera icon on your Facebook page to ad the picture. Different pictures on your phone will be seen. Click on the one you want to ad and the box will be checked. Next Facebook will pop up with your picture you selected. Hit post and it will be posted with your comments and your picture. Every phone is different, but if you find where your picture are kept- it is the same process. Good luck.