A selfie is a self-portrait photograph, typically taken with a smartphone which may be held in the hand or supported by a selfie stick. Selfies are often shared on social networking services such as Facebook, Snapchat and Instagram.
They are for vanity, usually flattering, and are casual in nature. "Selfie" typically refers to self-portrait photos taken with the camera held at arm's length, as opposed to those taken by using a self-timer or remote. A selfie, however, may include multiple subjects. As long as the photo is being taken by one of the subjects featured, it is considered a selfie.