lizard face!

so, matthew and his brother, mark, have this thing called lizard face. it involves smiling very big, pulling one's cheeks very high on the face, forcing the eyes into squints, then darting the tongue rapidly out, as a lizard might do.
i don't know where it came from, how it started, or why they do it. but as young teenagers, it came to be. they don't do it as much anymore, since they live with their wives and children now, not each other. but, we are doing our part to pass on the grand tradition of lizard face. here is one of toby's first attempts: