Any advice for a beginner caddie from a experienced looper?

I am going to be caddying for my first time this weekend, and it is a amateur championship. I have been golfing for 5 years. Any advice would be helpful.Any advice for a beginner caddie from a experienced looper?
Show up keep up and shut up. In all seriousness a good caddy will arrive in time to watch his man practise and get an idea of how he plays, the length he hits his shots etc. Make sure his clubs are clean and he has only 14 clubs in his bag before he tees off and make sure he gets to the first tee on time. Be the first to arrive at the ball and make sure you're not in a competitors way before plunking the bag down for your man to select a club when he has taken a club make a mental note of the yardage and club selected for future reference and take a few steps back and watch him play his shot making sure you know where it went. The caddy whose man is the first to hit the green is obligated to take the pin. If a player asks to have the pin held make sure it is loose in the hole for easy removal. Remove the pin as soon as he hits the putt so as not to take a penalty. Clean your players clubs after each shot, his ball before putting and in general let the player initiate any conversation. Relax and watch for other players positions so as not to interfere with their lines of play especially on the putting green but you already know that. Enjoy your day.Any advice for a beginner caddie from a experienced looper?
A few basics:





-Give your man exact yardages. Not ';it's sorta 135ish to the center of the green'; crap. More like ';it's 120 to the front, 132 to the hole, 141 to the back, and it's 115 to clear the water';.


-Give yardage recommendations, NOT club recommendations unless you know your man's distances cold.


-Unless asked, don't offer advice.


-Watch your man's ball flight like a hawk, especially if it goes offline.


-Keep those clubs clean, especially his irons (wipe the dirt/mud/sand off).


-Make sure you study that hole location (pin) sheet and know the course yardages.


-Be positive.
The big thing is pay attention to the players. Know where everyone is so you can stay out of their way. Stand behind your player and to the left (for right handed players) when he is hitting so you are out of his field of vision. Wet one end of the towel so you can wipe clubs off as you put them back in the bag. Always have the towel ready when your player marks his ball on the green. Know when other players are ready to hit or putt so you are not making noise or moving around. In general, think about what would bother you if you are the player, and then avoid doing those things!
I caddied for a friend of mine in the UK for a Q match for pro's his words on the first morning were ';Just keep your mouth shut'; that's what I did and we both had a great day.