Reporters looking to psychoanalyze the frowning Gilbert Arenas finally have found the exact thing that will cause Arenas to smile. Apparently, all it takes is for his teammate to hit a game-winning shot. Shocking analysis, I know, but sometimes, mysteries have simple solutions.

Seriously, check out Arenas' little celebration after this game-winner from Lester Hudson in tonight's preseason win over the Mavericks. There are jazz hands, there are legs moving, and there's a ... gasp ... a smile. Fast forward to the :43 second mark.

Don't be surprised to see Arenas hold a towel in his hands at all times to put over his face if he ever wants to smile. You think I'm kidding, don't you?

(HT: Jose3030).