Mine will come when called, and then sit or stand for a treat. About the same as my dogs. Actually, a little better.
I have enough trouble hiding my cat's Xmas presents from him. He keeps figuring out which gift bags they are (new collar with bell, and furry thing on stick) and messing with them. He does the I love you rub on them and bats at the one with the bell to make it ring. There are no identifying features, nothing poking out of the bag.
Cat magic, iLander. They have guiding spirits -- familiars, I think they're called -- who show them exactly how to drive you nuts. My Joe Don communes with his evil goddess daily.