Question: what are the signs that a dog is happy?
Answer: His eyes and eyelids are relaxed, he blinks a lot, his gaze is soft and his brow is smooth. ...  She's holding her body in a relaxed posture versus a tense or stiff stance. ...  He has no destructive behaviors, even when he's home alone. ...  She loves to play. ...  He's belly-up and tongue out.