My previous dog loved to chase our cat. He'd be lying on the couch, and` she would walk up to him and start poking him with her snout to try to get him to run. He would either stay put or slowly slink away.
My first dog would make this happy grunting noise when she saw someone she knew.
My AhBeauDoggy had a pikachu that he found and brought home one day(he fucking stole it I know it). He loved that thing. If you squeezed it it said pika-chu. The only stuffed animal/toy that wasn't destroyed in seconds. Had that thing for like two years before the voice stopped. Still loved the shit out of it so I would do the pika-chu for it. Had it years after his passing. Probably still have it squirrelled away somewhere.