Most of you probably already know that play often starts with a “play bow”--front end low, butt wiggling in the air, goofy openmouthed smile. Behavior nerds call the play bow a metasignal, meaning it tells the recipient how to interpret what comes next. When Dogalini offers Spike a play bow, she’s communicating that subsequent lunges, growls, bounces, and snaps aren’t real threats. When two dogs know each other well, they may barely sketch the play bow. The wonderful researcher and writer Alexandra Horowitz calls the result a “play slap”--exactly what it sounds like, a fast slap with the forepaws of the ground in front of the dog.
How can you tell when play, especially intense play, is going right? Look for constant, fluid, loose movement. As the play goes on, you may see the dogs take turns being on the bottom or being chaser and chasee. Surprisingly, though, the only observational study of play between pairs of dogs found that switching off rarely produced a 50-50 balance between the dogs. The same study, by Erika Bauer and Barbara Smuts, found that younger and smaller dogs generally did the most self-handicapping and offered the most play signals. These also seemed to be subordinate dogs. Bauer and Smuts suggest that perhaps it’s important for subordinates to make it especially clear that play aggression doesn’t reflect a serious challenge.
Watch the dogs’ faces. Look for open mouths. You may see teeth and hear snarls and growls, but again these will be in the context of fluid movement and lots of change--the dogs won’t lock into any one position. Their ears and the corners of their mouths will likely be back rather than forward.