We talked with each other about each other
Though neither of us spoke —
We were listening to the seconds' Races
And the Hoofs of the Clock —
Pausing in Front of our Palsied Faces
Time compassion took —
Arks of Reprieve he offered to us —
The ticking clock and the beating pendulum stand in for verbal conversation that the narrator is not having. These signals of the passage of time are more important than any other observations that the two might have about each other.
We talked with each other about each other