As Christians we pray individually as noted in the Didache:
“Neither pray ye as the hypocrites, but as the Lord hath commanded in his gospel so pray ye: Our Father in heaven, hallowed be thy name. Thy kingdom come. Thy will be done as in heaven so on earth. Give us this day our daily bread. And forgive us our debt, as we also forgive our debtors. And lead us not into temptation, but deliver us from the evil one, for Thine is the power, and the glory, forever.
“Thrice a day pray ye in this fashion.”
Didache 8:2-3 [70 AD]
The Apostolic Didache and the tradition of the Orthodox Church outline the general obligation for all of us to pray at least three times a day. In referring to the “Lord’s Prayer”, the Didache says: “Pray thus three times in the day” This rule comes to us directly from the Apostles and from Christ. This is necessary for our spiritual good.
As Christians we must pray. We cannot substitute works, gifts of money, or anything else in the place of prayer. We cannot think that prayer is “anything good that we do” in the sense of replacing the actual act of prayer about which Our Lord Christ Jesus said, “When you pray, go into your room and close the door, and pray in secret…” St Thophan the Bishop wrote,” If you are not successful in your prayer do not expect success in anything. Prayer is the root of all.”
From the Prayer Rule from my parish, adapted from various sources, the following is submitted that explains Coporate prayer and activities in preparation for it:
LITURGY AND CORPORATE PRAYER
Attendance at the Divine Liturgy on Sundays and on feast days should be considered the rule. There are of course exceptions to this rule given for the elderly, the frail, and those who live great distances from the church, you should contact the pastor for advice on handling these special exceptions. On these days the family should attend the entire Divine Liturgy at the parish church, since it is here that God's greatest gift is bestowed upon us—the Body and Blood of Christ.
Saturday evenings and the eves of major feast days should be times given particular attention by the family. The attendance at the Vesper Service at the parish church is the ideal manner to spend these evenings. If, however, due to small children, distance, or illness, members of the family are not able to attend vespers, they should spend a quiet evening in prayer and spiritual reading. Orthodox Christians should not be spending these evenings at movies, dances, or other amusements, nor playing cards, cutting the grass, fishing, or involved with other secular concerns, whether within the home or without. Radios, televisions, stereos, and musical instruments should be turned off on these evenings, since the day of the feast has already begun at sundown. These quiet evenings should be spent in quiet, spiritual preparation for the feast. Secular entertainments should not be recommenced until after the celebration of the Divine Liturgy on the feast day and then be appropriate to the celebration of the Feast.