Here’s a course on learning the words for Benediction. It’s based on the Catholic’s Latin Instructor by Fr Edward Caswall.
A hymn at the beginning of Exposition
The Litany of Loreto - up to Mater Salvatoris
Litany of Loreto from Virgo Prudentissima to Stella Matutina
Litany of Loreto - from Salus Infirmorum to the end
This hymn usually comes right before the actual Blessing of the Blessed Sacrament – or Benediction for short. We all kneel down – the English words run: Down in adoration falling
Here is the English by Rev Caswall To the everlasting Father, And the Son Who reigns on high With the Holy Spirit proceeding Forth from each eternally, Be salvation, honor blessing,
V. Panem de caelo praestitisti eis. (T.P. Alleluia) R. Omne delectamentum in se habentem. (T.P. Alleluia) Oremus: Deus, qui nobis sub sacramento mirabili, passionis tuae memoriam reliquisti: tribue, quaesumus, ita nos corporis et sanguinis tui sacra mysteria venerari, ut redemptionis tuae fructum in nobis iugiter sentiamus.
We usually pray the Divine Praises as well. While they aren’t in Fr Caswall’s book I’ll add them in here as a special bonus: BENEDICTUS BLESSED be Deus. God. Benedictum Blessed be Nomen Name Sanctum Holy eius.
As the Blessed Sacrament is returned to the tabernacle and the priest and servers prepare to leave it is customary to sing a recessional. Adoremus in aeternum is the most commonly used, but there are lots of suitable pieces.