What do you see in this video (CoBuHe)

I think Heidi is telling Bruder "you can touch but i am not going to give it away". I can even see Heidi trying to reinitiate the game by trying to place the toy back on Bruder's mouth but he is not interested anymore

Yes.  Is it that he is not interested anymore; or is it that he is reading her to say "its mine?"  He gives off some calming signals at the end...which makes me wonder that.

 I wasn't really reading any 'behavior' stuff. But I have to say.. that was the laziest game of tug-of-war I've ever seen!

LOL...yes, they have definately had more exciting tug of war games before.  I found this one so intriguing because of both of their expressions.  Heidi's especially. 

CoBuHe

Yes.  Is it that he is not interested anymore; or is it that he is reading her to say "its mine?"  He gives off some calming signals at the end...which makes me wonder that.

But it seems that Heidi wants to keep playing the "lazy tug of war" and offers the toy back at him, she seems to be getting ready by getting a better hold of the toy but it seems too late. Maybe the "calming signals" were a coincidence and he really yawned and started smelling the floor

LOL...perhaps the game was SO boring, he actually did just yawn. 

 Lol was interesting.  Heidi actually was reminding me of something I will do when I want a toy back that Kirby is trying to tug but I don't feel like specifically commanding the action with a drop command.  I'll just sit there holding the toy yet not really engaging till Kirby drops his end because the game is booooooooooring since I'm not being an active participant.  I didn't really see the bit at the end as her trying to reengage but more of her trying to get the toy in a chew position and him happening to be right there in the space she was planning to chew.

 She definitely has the upper hand (possession is 10/10 of the law with dogs), and I think that she was saying "you can tug, but the toy is mine."

Her demeanor at the beginning is softer than at the end, and I think his yawn and look-away are calming signals, deferentially acknowledging that he understands that the tug is hers.   Often, when a female has possession of something, a male dog will not take it, even if he could do so, although that isn't always the case.  These look like two well adjusted dogs who "get" the nuances of canine language.

Thanks Anne.  Its really nice to read that you see two well-adjusted dogs.  I think they are as well.

Sometimes they have spats (and I can definately tell the difference between a spat and play).  They are few and far between....but they can get ugly.  Never do they draw blood; its a lot of noise and shiny white teeth being displayed.  But, its ugly enough that I'm not going to try to physically separate them.  I have to distract them away from each other.

Day before yesterday they had two spats (in the same day).  One inside the house and one outside the house.  Never have they had two spats in one day.  DH said I've been giving them more freedom in the house and thats true.  I also put a toybox down in the living room and are allowing them to get whatever toys they want when they want.  I'm wondering if giving them free access to toys is such a good idea in the house.  Having said that however...that morning there were kids with their loose dogs and goats (yes, goats) walking down our street.  My dogs started running the fence.  I called them in; they came as called and I shut them in the house so they couldn't get back out to the fence.  Frustration?  Could that have been the spat initiator?  Maybe.

As you can see, Heidi does tell the others that toys are hers.  I have to manage that and do not allow her to take toy from someone else.  If she does that, I'll verbally correct her, take the toy...give it back to B or B; then hand her another toy.

 I guess my response to your comment is that, while the interaction I saw on the video showed well adjusted dogs communicating effectively, that's never the whole picture.  Dogs have spats (even Sioux and Sequoyah who adore each other).  In my house, *I* own all the toys and I never just leave them lying about.  I pull them out and parcel them out, and it's my decision who gets to play and in what order:-))  The most powerful *dog* is the one who controls resources;-)  I do not correct my dogs for taking other dogs' toys, because that disturbs the natural balance they have set themselves up in.  What I don't tolerate is any bluster over toys, then I simply take *my* toy back and leave with it.

What struck me in the clip is how close Heidi and Bruder were. They were totally in each other's space, but quite relaxed about it. That just doesn't happen with dogs that aren't very comfortable with each other. Ignoring Kivi, who gets intimate within about 15 seconds of meeting a new dog.

Kivi and Erik play similar lazy games of tug when they are just kind of filling in time but not really bothered with actually getting up and playing. But there's rarely that subtlety that Heidi is showing "You can play, but it's mine. Just so you know."