I think thabert is right. Maybe it's not flamboyance that you need as much as it is that you don't need to look "plain." For example:
1- When you indicate a direction, do you point with your hand or with two fingers?
2- When you report an illegal use foul, do you chop with an open hand across your forearm, or do you chop with a fist that stops short of your forearm?
3- Are your counts non-chalant and slow or are they sharp, crisp, and accurate?
4- Do you sell the call when you have to?
Watch some of the officials working the tournament this weekend. Maybe you can pick up some things that will make you a little more "flamboyant!"
