| Quote #1
But we looked into a fire, we leaned across a table,
The speaker emphasizes the "we"-ness of the actions she remembers, making sure that the reader knows that everything that happened that night was done with "you."
| Quote #2
We had gone back and forth all night on the ferry;
The syntax of line 9 feeds into the sense of shared actions set out in lines 7 and 8: the repetition of "and" allows the speaker to describe each individual's actions as if they were part of a related whole.
| Quote #3
We hailed, "Good morrow, mother!" to a shawl-covered head, (15)
The casual use of "mother" here signals a sort of kinship and respect which is actually more like friendship than actual family relations.