Judging Videos at Nationals

We are VEX middle school team that is going to the 2016 CREATE U.S. Open Competition. This is our first year doing it and we are starting to work on our judging video. As we like to have fun with what we are doing, we want to make our video enthusiastic and playful, but how playful can our video be without it being too unprofessional? Does anybody have any other tips or advice to make the best video possible?