I haven’t studied Canon Law, but the reason the congregation is asked to raise their hands, is that we are showing support for these people entering the Church as the Church and praying for them. We, as the physical body of Christ left here on Earth to do His work should be happy and rejoicing for these who are accepting Jesus and His teachings and joining us.
I would say, that if it makes you feel uneasy, to simply bow your head and pray earnestly for these people, rejoicing in your heart for their conversion.
This is almost the point like when parents bring you to church for your Baptism, your Confirmation, or your first Holy Communion. Except these people will experience some or all of these wonderful, grace filled sacraments at the same Mass (the Easter Vigil). This is a wonderful experience to share. It is like being one of those first disciples or apostles. If you have the chance, attend this Vigil Mass. It is a wonderful expression of what it is to be Catholic. And if you want to really participate, maybe you could send a card of encouragement to these new Catholics as a new part of your parish family (especially if you know any of them).
Soon the time will be here. I am excited waiting for it to come as an RCIA teacher/leader.
The first time you sing the “A” word in the Gospel Acclamation, I hope you feel the chill I do as we finally celebrate that HE HAS RISEN! It makes Lent seem so much more meaningful.
God Bless.