Just to pump eachother up ?
I didn't think so.
I watched it live and had to play it back again. I think PP was trying to tell KG about either a missed defensive or offensive rotation/assignment. That was my guess.
If you keep watching on tivo, during a break, you'll see PP talking to a suited up Michael Finley. It looked like he was telling him about the KG incident. Who knows what was said but it looked like PP was explaining to Finley what KG didn't get at the time, as if to say, " man, took him long enough to realize that he missed something. "