I would like to know if the Eastern churches practice Eucharistic Adoration, reserve the Eucharist in a tabernacle, or have other similar practices?
The Latin devotion of Eucharistic adoration is generally not practiced among the Eastern Churches. We place less emphasis on visually seeing the Eucharist, and a greater emphasis on physically consuming it. The primary Eastern understanding of the Eucharist is as the “medicine of immortality.” A medicine is most effective when consumend and ingested.
Also, the exposition of the Eucharist really isn’t in harmony with our Eastern sensibilities. We refer to the sacraments as the “Holy Mysteries,” and it isn’t in keeping with our spirituality to visually expose a mystery. Rather, we believe that a mystery is to be concealed and guarded.
Of course, while we do not have Eucharistic adoration we ALWAYS show the utmost respect for the Eucharist that is reserved on our altars. Praying before Him is always encouraged.
Also, I personally think that Eucharistic adoration is very beneficial for the Western Church. For many centuries the West has had to battle against a denial of the Real Presence, and Eucharistic adoration helps to counteract this heresy. In Eastern Christianity there has never been a denial of the Real Presence.