Sure, I could meow by my dish when I'm feeling hungry, but frankly it's been done. A kitten can do it. I feel a grannycat of my stature needs to bump it up a notch. My twist?
Stand in the middle of the living room - two rooms away from my dish and meow as loud as I can. When the volume of the television goes down (so the parents can see if they really heard the aforementioned meows) you turn the meows to off.
When the television volume goes back up, begin to meow again.
Eventually one of the parents will get off their asterisks and come to see what's wrong. As soon as I hear they are up (amidst the complaints) I race for my dish and begin my dance.
"Seriously? All that meow business and you were just hungry?"
Well, it gets their attention. So far, it's worked every time. Snack happy friends.