You’re at Mass, and the Lord’s Prayer is coming up. You fold your hands in the “prayer” position. Everybody else follows the actions of the presiding priest and holds their arms and hands extended and open (the Orans posture).
You are doing it right…
It’s kind of a bugaboo to me parish that congregations are not informed as to the proper way to act during this part of the Mass. I didn’t know it, either, until several years ago when somebody pointed me to this Church document:
In the document, Instruction On Certain Questions Regarding the Collaboration of the Non-Ordained Faithful in the Sacred Ministry of Priests, put out by the Vatican on August 15, 1997, we read,
“In Eucharistic celebrations deacons and non-ordained members of the faithful may not pronounce prayers — e.g. especially the Eucharistic prayer, with its concluding doxology — or any other parts of the liturgy reserved to the celebrant priest. Neither may deacons or non-ordained members of the faithful use gestures or actions which are proper to the same priest celebrant. It is a grave abuse for any member of the non-ordained faithful to “quasi preside” at the Mass while leaving only that minimal participation to the priest which is necessary to secure validity” (ICP Practical Provisions 6 §2).
Additionally, holding hands at this time is also not permitted. Neither is the mouthing of the words of consecration.
I am not pontificating, here, I have a lot to learn and I hope to keep learning until I die. This is just one of the things that I have learned and want to pass it on to anyone who also wants to “do it right”…