After the recessional, as they enter into the narthex, all the altar boys turn and knell. Fr will then say “Praise be to Jesus Christ”, to which the altar boys respond “Now and Forever!”
Father will then give them a blessing and thank them.
After that, the altar boys will return to the altar boy room to de-vest, except for a few older ones who will wait until the crowd dies down and then retrieve the sacred vessels and otherwise prepare the altar for the next Mass.
During this time, Fr is greeting parishioners as they leave.
Attached is a pic of what I am taking about. FYI, the little guy in the corner is my youngest son. He SO much wants to be an altar boy like his big brother
Prior to Mass, all the altar boys gather in front of a statue of Mary and Fr leads them in a vocational prayer. They all then form up for the processional.