The NCAA has implanted new rules directed to the face off. According to http://www.ncaa.com/news/lacrosse-men/article/2014-09-10/prop-approves-rules-regarding-stalling-and-faceoff-tactics-mens The rules for the face off are...
1) The official will direct the players to come together and put their sticks on the ground opposite each other;
2) The official will place the ball on the ground and say “set;” and
3) The official will step away and blow the whistle to start play.
Also other rules include no stalling procedures and you may not have the ball stuck in the back of your stick.