There are a few things to consider when writing a script in Greek. First, the alphabet is different than English, so you'll need to find a good resource that lists the Greek alphabet and how to pronounce each letter. Second, Greek has a lot of inflection, so you'll need to be careful to use the correct forms of words when conjugating verbs and declensions. Third, there are different dialects of Greek, so you'll need to decide which one you want to use. Finally, Greek has a lot of loanwords from other languages, so you'll need to be aware of which words are Greek and which are not.