Originally Posted by
jimlad48
Join in! Just start talking into speaker and go 'hi my names X, I am nothing to do with you but as this calls on speakerphone I assumed I could join in'
I'm in a coffee shop right now and the man who sat next to me started a FaceTime conversation with a friend. I looked over acted engaged, I even nodded when the remote person said he was "just watching TV" and was about to ask "what show are you watching?" when they decided to end the call.