We trust that you intend to partake and experience a Greek wedding in full, and we definitely wish to see all of you on the dance floor regardless of your skills.
Unless you are already familiar with Greek folk dances, you can have a look at the following tutorials with two of the most common ones, and practice as much as you like. Opa!
Of course, the party will not only be limited to Greek music (traditional or modern), so there will be no excuses not to put your dancing shoes on!