Personal opinion:
First of all, choose the song, choose a good sound but not fall into the cliché of the song (God's little apple even if it ~)
Team changes. The square dances I've seen have almost no changes in formation, so if the changes are natural and special, they should be more advantageous
Clothing. Pick some warm-colored clothes that reflect your personality (such as orange tracksuits), and don't be flamboyant