Christians pray different prayers at this point, of course. Many use the prayers in the front of the hymnal; others offer their own.
Here is a prayer that I prefer to pray after receiving the Savior's Body and Blood:
I thank You, O Lord Jesus Christ, that You have granted me, unworthy servant that I am, grace to receive this, Your most holy body and blood, and I pray that it would be to me for the forgiveness of all my sins, for strength in resisting temptations, for service in Your kingdom and finally for the glories of the life that never ends. Glory to You, Lord Jesus Christ, my King and my God! Glory to You forever! Amen.