| 
		
	
		
		
		
		 
			
			It sounds like you might be too close to the play.  Take a step back or two so you can see the whole play.  After that, it is a matter of building habits.  A great place to start is by officiating the defense.  This will allow you to see if the defender has established legal guarding position and evaluate whether contact is a foul or just incidental.  As far as watching for violations, by seeing the whole play, you will be able to pick this up.  Not a great complete answer here, but a start I think.
		 
		
		
		
		
		
		
		
		
	
	 |