I have never, ever beaten Bonnie at this game.
Her strategy is the following:
1) If Mommy's wearing short sleeves, insert cold, wet beak into Mommy's armpit. Lick if necessary.
2) If Mommy's not wearing shoes, bite her feet.
3) Failing those, wedge beak under Mommy's arm to access face. Insert tongue into Mommy's mouth.
4) If ALL of the above fail, jump on Mommy's back and start digging, hard, until she screams and gets up.
I'd like to think of these as signs that my dog is highly intelligent, rather than, say, a gleeful sadist.