[Coda]

I've got a cockatiel that will cuddle his head into my wife's face, especially up under her nose. (He won't get close to mine; he pecks me if I even suggest it.)

One of my cats loves to climb up into our bed when my wife and I are lying down and wedge himself between us, even if there's not quite enough room. One time he pushed his head up under my arm and tucked the rest of himself into my armpit. (And he's a LARGE cat.)

Another of my cats will do the normal cat thing of headbutting you to show affection, but if you scratch her on the head when she does that she'll put a paw around your wrist and turn her head to start licking your hand.