Olga is quite right. If you use windows, you can right-click the language indication, on the task bar, and add the greek keyboard. Then you need to get used to it, but it's worth the try! ;)

Hello! First of all, you need to write greek letters. Is it possible to you, or you haven't allready learn? Your notebook can look like this: Γειά σας. Τι κάνετε; Με λένε Στέφεν. Μιλάτε αγγλικά; Μου αρέσει η δουλειά μου, δουλεύω πολύ.