Assistant Minister is in some ways the most involved of the three "adult" worship leader roles, and certainly has the most steps, but most of the activity is spelled out for you in the liturgy and most regular church attendees with a reasonably good voice who try it out quickly find themselves enjoying the experience. 

Calvary's need:  one Assistant Minister per Sunday morning service. 

Sequence of activities: 

  1. Pre-service preparation: the single most important is to practice the Kyrie, which is the responsive introductory singing portion at the beginning of the service:
  2. Dressing before the service:  try to arrive at least fifteen minutes before the service the first few times you do it, twenty if you want to run over the Kyrie a few times using the piano.  Even if you know all of the Kyries cold, it can be helpful to run the current one once to get it loaded into your head before you get up there.  Wear a comfortable robe with decent velcro, a rope "cinture" that wraps around you several times and hangs about halfway down your right thigh, a wooden cross, and one of the wireless microphones, which is necessary if/when there's no microphone on the altar.  Take a second to familiarize yourself with the "on/off" and the "mute/not mute" switches.  You have to be on and not muted for the system to hear you.
  3. Procession:  if you're serving in an:
  4. Sing the Kyrie:  after the procession there is a minute or two of spoken service between the pastor and congregation before the Kyrie.  As the music starts, take a moment to review the verses and get the feel of the beat.  You may even want to subtly snap your fingers behind your back to lock the beat in.  You are the leader of the Kyrie...the piano is there to accompany and assist.  Lock in your own beat, get the right pitch, and then proceed confidently as though there was no piano at all.  If you wait and listen and try to "chase" the piano, while the pianist is trying to follow you, strange things can ensue.  If you set the pace, the pianists will adjust and you well stay well-synchronized.  When the time comes to sing, take a deep breath so you have air enough to make it through, and don't be afraid to project.  Singing out strongly will support your good pitch.
  5. Remain standing:  after the Kyrie, you've finished the toughest part of the service  You're essentially done until after the sermon and Hymn of the Day.  You can either remain near the altar or fall back a few steps during the Hymn of Praise.  From a standpoint of standing and sitting, you are a member of the congregation now.  Sit for the Lessons and/or Psalm, stand for the Alleluia verse and Gospel, sit for the Sermon and stand for the Hymn of the Day, just like the congregation does.
  6. Creed:  at the end of the last verse of the Hymn of the Day, ease forward so you're in front of the altar hymnal when it's time to lead the Creed.  After introducing the Creed (Apostles', Nicene, or on rare cases the Athanasian) lead the reading of it at a deliberate pace. 
  7. Prayers of the Faithful:  immediately after the Creed, you will start the Prayers of the Faithful and then usually wait for a musical interlude before commencing the main body of the prayers, during which you read a petition, concluding with the phrase "Lord in your mercy," which prompts the congregation to respond "Hear our prayer."   As a general rule:
  8. Passing the Peace:  once the prayers are concluded, exchange the Peace with the other Worship Leaders, then choose whichever aisle the others appear not to be going down and greet anyone who doesn't seem to have anyone greeting them at that moment.  Do this for awhile, then return back up to the sacristy area (the room with the sink beside the altar) and use one of the antibacterial wet-wipes to sanitize your hands before the communion begins.
  9. Offering:  while you are doing this, the Ushers will be collecting the offering and they and the Communion Assistants will be bringing the offering and the communion elements forward.  At the end of the Offertory, lead the offertory prayer, then stand back and participate like normal until the presiding minister communes you.
  10. Receive communion:  most of the time, there will be two Ordained Ministers or one Ordained Minister and an Intern serving with you, which means that you will not have to administer the bread.  After the Presiding Minister blesses the elements, you may be the one communing the other Worship Leaders.  If not, receive communion and then take one of the chalices and its accompanying cloth and wait for whomever his handling the bread on your side to be ready.  Follow him or her (and the Communion Assistant should follow you).
  11. Administer communion:  unless you are administering the bread, you will follow along with the chalice and offer it to each of the communicants at the rail.  Sometimes almost no one will drink from the chalice, sometimes nearly everyone will.  When administering the wine in the chalice, take your cue from the communicant.  Hold the chalice loosely but steadily and let him or her take the chalice into his or her own hands if that is preferred.  Finish with communion:   once everyone is done with communion on both sides of the sanctuary,  carry the chalice and cloth into the back room adjacent to the sanctuary and set it on the counter next to the sink.
  12. Post-communion:   after you have finished with the elements, return to your place behind the altar and finish out the last communion hymn with the rest of the congregation. If they are seated, feel free to sit on the chair nearest the communion tray stack, on the outside edges of the pews, or on the pew if there's room. If the congregation is standing, remain standing for the duration. 
  13. Third and final prayer:  after the conclusion of the last communion hymn and the singing of the Post-Communion Canticle, you have your third and final short prayer, after which the presiding minister will do the benediction.
  14. Recessional:   as with the Processional, this differs by liturgy:
  15. Farewell:  at the conclusion of the recessional hymn, say "Go in Peace, Serve the Lord," as loud as you are able without actually shouting.  The Congregation responds "Thanks be to God."
  16. Exit Greeting:  take a quick look around and see who is covering which sanctuary exits.  In most cases, the presiding minister will greet people at the main exit and the Lector will cover the west door.  That leaves you with the east door, the one closest to the parking lot.  Prop the cross against the wall next to the door and greet everyone who comes through, wishing them a happy week.  If you notice someone you haven't met before, take the time to introduce yourself.  This is one of the easiest and best evangelism opportunities available.
That's all there is to it. It sounds like a lot, but when you break it all down, there's really two main activities:  the Kyrie (which you get out of the way up front) and the Creed/Prayer of the Day.  The rest is just following along in the bulletin alertly and chiming in when you see the "A" part marked.  After doing a month as Assistant Minister, you may actually grow to find your time out in the "audience" part of the congregation less exciting than your time up front, helping to lead things.  In my opinion, this is the most challenging Worship Leader role, but also the most fun, and the members of the congregation tend to be very grateful for the effort.  Once you've done it a few times, it will be effortless.

Thank you very much for taking the time to read through this, and for your service.

In His Love,

Jonathan