From A Guide to Readers in Orthodox Church...
The holy order of the Reader upholds the spiritual responsibility for the care of the spoken words or Holy Scripture. In societies where most people are unable to read the Scriptures, the office of the Reader provides the most regular exposure to the Word of God outside the Gospel and Epistle readings. In societies where literacy has flooded the human heart and mind with disharmony, noise, and confusion, the sacred responsibilities of the Reader are even more critical, since by the prayerful and holy exercise of his ministerial responsibilities, the Reader offers the Holy Scriptures as a correcting balm, and a healing of the spiritual hearts of the faithful. This is a critical and sacred responsibility, which cannot be undertaken lightly without being an offense to Christ. Undertaken with humility, care, and love, the order of the Reader is a great blessing to the faithful of the Church, and to the salvation of the soul of the Reader himself.
With that being said, both lay and tonsured share this reponsibility. The difference in being tonsured is that it's the first step of the clergy.
If you are interested in reading the Epistle please talk to Rdr. Nicholas Morelli or Fr. Noah
Check out the links