“Praying always” is the same as Paul’s words, “Pray without ceasing” in 1 Thessalonians 5:17. Or Jesus’ words in Luke 18:1—“that men always ought to pray.” It doesn’t mean a continual stream of mumbling prayers under your breath to God. Think of it more as a continuing conversation in which one commits to God all the concerns of the day—as well as words of thanks and praise—with all kinds of prayers on an ongoing basis.