I know Molly is hungry because:

Things Molly has done lately to tell me that giving her three times as much food as normal is not enough:

Licked the leather furniture.

Licked Baby, which she has never done before.

Chewed on my fingers while trying to drag me into the kitchen.

Brought her dish into the living room and chewed on it.

Chewed up a candle.

Chewed on the teddy's collar.

Has not let me go into the kitchen alone for weeks.

Made me get up several times in the middle of the night to go out, and refused to go outside. Instead, she pointed me to the treats. This is not recommended on an hourly basis.

Sits at the door to go outside, then when I respond, moves to the garage door and sits very ladylike, wagging her tail. I keep milk bones in the garage.

Smiles big time in my face. She never did that before.

Licks her lips and looks at me with a pitiful look in her eyes.

Drools when I eat. Mybrother used to do that, too.

She used to be done with a meal way after Baby, but lately it has been a dead heat.

Goes back to her dish when it's empty and continues to lick it.

Dances when I get near food. Actually, it's good to see her dance again :)

On a separate note, last night she humped Baby at both ends to re-establish dominance, then they jumped around and played with some toys. This almost brought tears to my eyes. Molly hasn't shown that much energy in a few weeks unless the activity provided calories.