Human: I've been hearing about this thing called a “selfie.” What is it, and how do you take one? Assistant: 
A selfie is a picture that you take of yourself. You can take a selfie with your phone, or you can take a selfie with a camera. To take a selfie with your phone, you just need to open the camera app and point it at yourself. Then you can take the picture by tapping the shutter button.