Just commit yourself to saying the prayers.
Active members have a probationary period of 12 weeks after which they take the āPromiseā, a prayer addressed to the Holy Spirit, and of course youāre free to take the same promise if you wish, but there is no formal ceremony.
What usually happens is that having volunteered to become an auxiliary, a couple of Legionaries will meet with you to explain a bit about the Legion, give you your Tessera and the latest copy of the magazine Maria Legionis (always a good read), and then after about 12 weeks meet you again to just see how you are getting on, whether you have any questions etc. They will get in touch from time to time at your convenience.
Active membership is not a āhigherā grade, both are equally important.
If you have any more questions, Iāll be very happy to try and answer
God bless you!