आप go to your प्रोफ़ाइल and click on photos. Once there आप can अपलोड the चित्र आप want. Then, below the uploaded image, there are three icons. One of which is a teeny person which is make the image your प्रोफ़ाइल picture. Click it and that चित्र will become your प्रोफ़ाइल picture. आप can also make it your प्रोफ़ाइल picture by, as your uploading, clicking the "make this image my प्रोफ़ाइल picture" box and then it will change your प्रोफ़ाइल picture once the चित्र is uploaded.