I think my parents dog knows something is going on....she's a boxer who are notoriously jumpy and puppy like, and she's always been soooo annoying (like u have to lock her outside to stop her jumping, she tries to sit when u say 'sit' but she's just too excited), but recently she just sort of wiggles and springs up and down like a kangaroo pretty funny actually...and doesn't aim for my belly when she jumps up, she still jumps on everyone else though.
Could be cause im more cautious around her that she's picked up im not keen on the jumpiness, or a special dog sense, LOL