At every game, Rec and CSL, it is required to check player cards against the game card. 
Remember this:  Call Fouls! You are a ref, that is what you do! 

1) Stay close to the ball and position yourself to see fouls.

2) Don’t be a center ref. Run with the play. 

3) Introduce yourself to both coaches

4) Call a handful more fouls in the game vs a handful less. I never get complaints about a ref calling too many fouls. 

5) Be Professional, wear the full referee Kit.