Cute kitty!
Congrats on going after that first comp -- nuthin like that first trip out on stage! I was shy as shit too -- pick posing music that you like - that will help bring your personality out. The other thing to remember is that you've busted your ass to get on that stage -- NOW SHOW THE PEOPLE WHAT CHA GOT! It was also recommended to me to slam some red wine before going on stage - its a mild diuretic and will help with vascularity a little. It also helps loosen you up a little. The things to remember are to smile a lot and look like you are having fun. Its kinda like golf --- the less you care, the better you play. Relax and have fun. I HIGHLY recommend spending LOTS of time practiciing your posing and posing routine. Its excellent conditioning and you want to know your moves so you dont' get lost on stage. The posing is just like when you do it in the mirror (LOL!) except this time you WANT to show off your shit! And hot damn ManOSteel -- you need to show those young punks what you're packing!
You got some nice size tris -- show some more and list your stats. What do you want to compete at and when is your comp?