Generaly, I would always perform a simple diseaperance/ reapearance or travel of any sort... just to keep them untertained. Or I would do a monte with anything to get some buck or pints (one or two, just for fun)

BUT Sometimes, when I'm really fed up or tired or just don't want to, I'll just perform a "flying finger", when one finger passes from a hand to the other (kindergarden magic...)
It ****es them of a bit as you openly show them : I don't give a Shyte, but them seem to easily get thze point and don't bother asking again...