How to take a selfie, Covent Garden, London

Rule 1 - Find an intersting background, eg Rudolph the Reindeer with lights in the Piazza, Covent Garden, London.

Rule 2 - Facing away from the chosen background, hold you smartphone away from you so that you also appear on the screen.

Rule 3 - Seize the moment. Pose and take the picture.

Done