All of a sudden your dog avoids meeting your direct eye contact. Their ears are sort of pinned-back and they may be trying to make themselves look small. The tail may or may not be wagging uncontrollably (they just can’t help it sometimes!). Looking around you discover a large puddle.
Now their behavior and body language make all the sense in the world!
Your pup knows they shouldn’t have peed on the floor. But even though they appear downright ashamed at what happened, it’s actually a stretch to say that pets feel guilt.