I'm rewatching the game now. On Syracuse possessions, now at the 7-6 minute mark, Dixon consistently has 2 toes, and sometimes feet on the court. When Cooney is working to get open, Dixon's feet and presence have to be a distraction.
At the 6:15 mark, Dixon is on the court, leaning into the refs ear, on a Syracuse possession, obviously complaining about something Syracuse is doing on O. Aren't there rules against being on the court?
When the ball goes downcourt, Dixon is out by the Carrier mark.
All that said, I think the smirk is part douche, and part a way to instill confidence and toughness in his team. He is a great coach. His team moves and passes exceptionally well. And I love their toughness. But, can't stand him.