1. Not Bowing Before Receiving the Holy Eucharist
Paying reverence before the receiving the Holy Eucharist is a very important aspect of the Holy Communion. Because we are face-face with Christ at that moment, coming to receive his flesh and blood. So showing respect by bowing, kneeling or making the sign of the Cross are most appropriate and reverencing acts before receiving Him. This can be confirmed in the USCCB’s General Instruction of the Roman Missal.