Visit the page of the person you are sending the picture. Under the photo click "Send message". In the lower right corner of the info window will display "Attach" - click on it with the left button of the mouse or touchpad. In the list, select "Photo". If the picture you are going to send is in your albums, displayed in front of you images, select, click on it, and it will automatically attach to the message. You just click on the "Send" button. If the picture not in albums, but it's saved in your computer, find on the thumbnail photo next to "Upload new photo". Click on the "Choose file" button next in the window that appears, locate your image, select it by clicking with the left mouse button, click "Open" and "Send".
To publish a picture on the wall user, go to its page. The right side on the latest entry wall you will see a window with the phrase "send a message". Install the mouse cursor in the window, and then the same as in the first step, attach the image to the message.
To share any picture published in any community or news feed with all your friends, open it by clicking the left mouse button, click "like" in the lower right corner, and then in the pop - up window "share with friends".