Plenary indulgences for the Poor Souls in Purgatory are granted to the faithful who:
On All Souls Day, November 2, piously visit a church, a public oratory or — for those entitled to use it — a semipublic oratory. This is easy. There are plenty of Requiem Masses in my area, but even if that’s not true in where you are, there should also be Daily Mass as usual.
In visiting the church or oratory, it is required, according to recite “one Our Father and the Creed.” Another easy one as that’s included in Mass.
You must also pray at least one Hail Mary and one Our Father, or other appropriate prayer for the Pope’s intentions.
Communion must be received;
You must also go to Confession; and,
Have no attachment to sin, even venial sin.