Anyone can hang out with their dog. To me relationship building is much more. Even more than playing with and caring for.
A relationship is a 2-way street. Learning to communicate both ways with your dog builds communications. I guess a control freak who simply makes a dog do what they want, when they want, still has a relationship. But when I see people who work their dog–- be it obedience, agility, herding, whatever-- usually those who succeed have built a relationship of communicating and trust.
(Putting on flame retardant material.) It is my one dislike of a clicker. And before you start the flame throwing, I have a dozen, one on my desk. I like to use them to teach tricks because they are, really, precise. But I try to replace the click with vocal or team them because I don't think the clicker helps. Yes, it lets the dog know precisely what is right in their behavior, but to me it also removes the human part of that.
However, training to me is relationship building more than play because it requires attention of both parties. Don't laugh-- but I think the training from dog to human is equally important. When you dog gives you signs of needed to go out, it is a training situation. Your response to that need is important communication that you know what the dog wants and you respond. When Cara comes and lays her big head on my knee, I GET that she wants me off the computer or at least petting her while on it. If she were demanding often, it would be a different issue. But she does it a couple of times a day and often when I have been too absorbed. She NEEDS some attention. I readily give it even if it is one hand stroking her while I continue doing whatever on the computer. It helps her understand the relationship is 2 ways-- she listens to me, I listen to her.
I couldn't find the Kibble Nibble on SitStay. I tried Kibble Nibble, just kibble and just nibble. I gave up and went to amazon. I wish I had stock in amazon.