Hi im going to my first horse show ever...

Im very excited. It's a show jumping Comp. Im taking my new horse bud, & since i've never been to a comp before I was thinking you guys could give me some helpful tips for us. Im only jumping really small :'( (by Im I mean buddy's jumping & im staying on lol)
So give me the low down what do you do to prepare, groom, etc your horse/s for a compitition.
P.S. The comps on the 6 & 7th of June so i've only got a couple of days...
**** Any tips warmly welcomed ****