This camera has no rotating screen, so you cannot see the photo while taking it. You will have to use common sense and conjecture to discover how to point it out.
Hold it with your arms extended, with the lens pointing straight at your face. Then press the button. Check the image on the screen and if the frame is off, try again.
The camera is small enough so you can use a selfie stick and the camera's timer function.
If you want to see the screen while you frame the photo, get a mirror.