Photos you take are stored on a small memory card in your camera, normally an SD card. Removing this card is simple – the slot is clearly labelled on the camera, normally on the side of the device, sometimes behind a sliding cover. Press the card in gently until you feel a click, and it will pop out.
From there, copy the photos to your computer's own storage. You can then edit them, upload them to Facebook, or send them to a friend.