Upon exiting a middle-aged friend's
dusty workshop after visiting with him for a while, I let out a humongous, "Vwah-FWHOOF!", complete with an exaggerated "blasted off my
feet from the explosion" high-jump. Another pleasant-natured dude who was mowing his lawn on the adjoining property cheerfully responded, "Bless you!",
even though he was more than a hundred
feet away. A small and "casual" gesture, to be sure, but I never forgot it --- there's just something special and memorable about blessings from afar.