Finally, my first official HS Game. Any suggestions?

[NURef]

I've been officiating 20 minute running clocks for 2 years now and Tuesday will be my first real HS game.

I feel like I'm ready but something tells me I need to refocus on some basics instead of trying to remember the exact situation used in my case book for RPP. Any last minute recommendations...maybe the top 3 things to keep in mind as I take the court?

Have a great Thanksgiving!