Person 1: I had egg dippies for breakfast
Person 2: The fuck is egg dippies?
Person 1: Its where you fry bread dipped in egg Person 2: That's called French Toast you massive retard
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.