Make sure all competing students read and understand the rubric and are prepared for any interviews.
The most successful STLP groups hold a pre-Showcase/School Showcase/District Showcase to provide students with practical experience presenting to adults prior to the Regional Showcase.
At the Regional event, know that all service categories and showcases will need to provide their own devices during presentations/interviews. For example, if you want to show judges a video, instead of arriving with a DVD copy only, plan to bring a laptop or have it preloaded on a mobile device. Judges will not have devices.
Although internet is available, be prepared with a back up plan to present in an offline mode or via a secondary, personal hot-spot connection.