SMILE!

Gretna Green: "Here she comes again with that black camera of hers!
                            Smile, Bert, smile for goodness sake!"
Blue Bert (out the corner of his mouth): "I'm sick of smiling on cue!"
Gretna Green: "Go on! Do it just for me! Unzip that gorgeous mouth of                                      yours!"
Blue Bert: "Grrrr! You know I feel silly when I smile just for the camera, but I'll do it for you, since you asked so nicely! Hang on, my zip's stuck!"