A selfie is a self-portrait photograph, typically taken with a digital camera or camera phone held in the hand or supported by a selfie stick. Selfies are often shared on social networking services such as Facebook, Instagram and Twitter. They are usually flattering and made to appear casual.
happening by chance, without definite or serious intention; careless or offhand; passing
But in this case ,I'm asking of what is casual in different cultures and the intention behind these accidental poses , that it makes them to seem somehow reversal .!!?