" Greeting Clergy in Person. When we address Deacons or Priests, we should use the title "Father." Bishops we should address as "Your Grace." Though all Bishops (including Patriarchs) are equal in the Orthodox Church, they do have different administrative duties and honors that accrue to their rank in this sense. Thus, "Your Eminence" is the proper title for Bishops with suffragans or assistant Bishops, Metropolitans, and most Archbishops (among the exceptions to this rule is the Archbishop of Athens, who is addressed as "Your Beatitude"). "Your Beatitude" is the proper title for Patriarchs (except for the Œcumenical Patriarch in Constantinople, who is addressed as "Your All—Holiness"). When we approach an Orthodox Presbyter or Bishop (but not a Deacon), we make a bow by reaching down and touching the floor with our right hand, place our right hand over the left (palms upward), and say: "Bless, Father" (or "Bless, Your Grace," or "Bless, Your Eminence," etc.). The Priest or Bishop then answers, "May the Lord bless you," blesses us with the Sign of the Cross, and places his right hand in our hands. We kiss then his hand. "
Orthodox Tradition, Vol. IX, No. 1, pp. 10-11.
All converts go through this awkward period because often Orthopraxis is taught after, not before conversion, in many parishes. I know many cradle orthodox in the US who are just as insecure as you are, most Bishops understand this and will help you through the process (of course they may talk to the priest to assure he is teaching you right). As a result there are often Church newsletter articles about "clergy etiquette" either just before or after the Bishop's visit.