At some point during the proceedings I usually ask the lady "Are you a vegetarian?".
If the answer is "no" I suggest with a gesture or a word that it is time for "my special lollipop" or 'How about some meat then?" which raises a small smile or large laugh and they get on with it.
If the answer is "yes", which is rare, I ask if they might make an exception for me and carry on as with mention of meat as above.
Anyone got a better way? Or a more subtle way, apart from dragging her face to mister happy?