"Let us pray with confidence in the words our Savior gave us," calls out the presider to the assembly. Or, perhaps, another introduction is used: "As our Savior Christ has taught us, we are bold to say," for example. Or, perhaps, the presider simply begins-enacting the confidence that the introductory texts call for-the assembly easily catching on that this is a communal act and joining in: "Our Father in heaven, hallowed be your name ... " In any case, here is an archetypal act of presiding: the leader proposing an important, beloved and known-by-heart act of prayer and drawing the entire assembly into its practice in a known-by-heart place.
Lathrop, Gordon W., ""Let us pray with confidence": Leaders of the Assembly Prepare" (2003). Institute of Liturgical Studies Occasional Papers. Paper 106.