You can hold your C3 either vertically or horizontally. To "see" your picture, look through the viewing window -- it's
the left one. Then compose the subject just as you want it.
Be sure to hold the camera steady at the moment the picture
is taken, and squeeze the shutter release smoothly. When you take the picture, the shutter cocking lever will snap back to
its original position -- make sure your other fingers don't block it.