Impulse the dignified

I took Impy to PetSmart today. He got patted quite a bit, and for the most part accepted the pats with dignity and good grace. But we met one lady he took quite a shine to (maybe she smelled like food, or maybe she was just a dog person). He ordinarily doesn't jump up like Hero, but he liked her so much he reared up on his hind legs, but without placing a paw on her. He just sort of balanced on two legs in front of her. I told him no, and he promptly dropped to the floor and rolled over, waving his paws in the air: Please rub my tummy. She did, and he wiggled happily. It's funny how dogs just decide some people are their buddies!