What Is Ronny Turiaf Doing?

I had sick second row seats to the Lakers/Spurs game last night, and of all the things I noticed sitting that close to the action, this is what I couldn't stop watching. Lakers reserve Ronny Turiaf, during every timeout, goes to the scorer's table and proceeds to play with the rosin powder that has been left on top of the table. Seriously, after every timeout he wanders over and does this. What the hell is he doing? Is this some form of French voodoo?

Watch the video and leave your best guess in the comments, because I was literally mesmerized by this extremely odd ritual.