Greetings in that Divine and Most Precious Name of Our Lord and Savior Jesus Christ!
Yes, kissing priests/Bishops hands is normal in Orthodox. In the Ethiopian Orthodox we kiss the clergy's hands under these circumstances
Firstly, any ranking Bishop/Abbot/Patriarch as he is the seat of our Apostolic Authority, and all ordination comes from the laying of his hands, so we kiss these hands in the reverence of the Apostolic Succession of the Holy Spirit which we receive literally at the Bishop's hand.
Secondly, we kiss the hands of the priests who celebrate the Divine Liturgy because their hands have held the Body and Blood of Our Lord and are thus consecrated.
Thirdly, out of humility and filial love for the clergy, in these contexts it is an endearment to our personal priests more so than a genuflection, just as we Christians may kiss the cheeks or shoulders of our dearer friends and family.
Within Ethiopian Orthodox our priests practice an interesting kind of systematic humility. The assumed leading priests often do not jump right up to lead prayers or the Dismissal Blessings, rather several priests will shyly shuffle amongst themselves pulling at each other to persuade the other to take the lead. It becomes almost a kind of dance sometimes, as they rotate and shuffle. IT is not avoiding responsibility, rather it is a personal display between priests of both their reverence and friendship for each other and also their willingness not to take the spotlight, rather to humbly pray in the back almost as if laity. Within Ethiopian Orthodox the priests have such a special role in our community that it is refreshing to see that they do not in fact lord over the laity, rather they are as meek and humble about it as anyone else. Other times, as odd as it seems, it almost looks like stage fright, though as a musician I can attest that after years of public service and public performances, stage fright goes away, so surely these priests who have led for years are not nervous, more so humble and above all else rigidly sincere.