We have weekly adoration. Attendance varies weekly from 2 or 3 to a dozen or more but it’s usually pretty good. Amazingly we don’t have any assigned adorers meaning we don’t ask anyone to sign up for shifts, but people have been pretty dedicated on their own. Adoration time is a couple of hours after afternoon Mass and ends with Benediction.
I agree with the person who said that one way to get people interested is to schedule it more frequently. Otherwise people forget it’s there. If its available weekly, or more often, people are more likely to remember. If they can’t attend one week because of their other responsibilities they can often make time to attend another week.
We’re lucky that we haven’t needed to assign shifts but I think it’s a good idea to ask people to commit to specific times, just to be safe.
Choose a time that’s convenient and start small. I think one reason our adoration more or less works is that it’s weekly but only a couple of hours. We don’t have to worry so much about finding adorers to fill in all day. If you have a lively parish maybe you’ll soon find enough people to have adoration all or part of the day and that’s good but I would still suggest starting small with a shorter time period.
It also helps that our adoration time follows Mass. Father always invites people to stay for adoration after Mass (except for the rare times it has to be cancelled and then he explains why that week). News of adoration soon spreads through word of mouth that way. People also find out because religious education classes happen around that time and people often drop in before or after classes.
Advertise. We advertise adoration in the parish bulletin.
Ask for it and be available. Be willing to volunteer your time. If father seems unwilling (and I’ve experienced this) be willing to offer your time. Even if he says no that time the seed is planted in his head that there’s interest, that someone has asked for it, and he might be more willing next time you ask.
Pray, not only for your regular intentions, but that adoration continues at your parish and that it’s succesful. Pray for your parish and its renewal. If the pastor (or others in charge) drags their feet, pray that God enlightens them.