Be happy. Think of an inside joke, then laugh about it. Smile as you think of the punch line and time that to the moment the picture is taken. Thinking of happy moments will also bring a smile to your face. Remember what a smile feels like. Practice smiling and notice how the muscles in your face feel.ean into the camera slightly. Tilt your chin downward, but avoid tucking your head back and creating the appearance of a double chin. Leaning toward the camera creates dimension in the picture frame and draws the viewer into your smile. Give a three-quarter smile that's not too wide and not too small.