What is the most logical next event?

How to be an altar server in the catholic church
Prepare for the task.
Before you arrive at your church, be sure to wear good clothes, such as a collared shirt and pants. However, in some albs, wearing a collared shirt is impractical.
Wearing smart clothes is not imperative as the congregation cannot see what you are wearing. However, be sure to wear smart, presentable shoes that you can easily walk in without tripping, as the congregation probably will see these.