Final answer:
Through the provided excerpts, we understand that Tucker displays humility by his behavior, which shows modesty, acceptance of civic inferiority without complaint, and thankfulness despite fantasies of grandeur. He avoids boasting, maintaining a low profile even when considering his potential.
Step-by-step explanation:
The reader can determine that Tucker is humble through the textual evidence provided in the three excerpts. In the first excerpt, it mentions that Tucker does not seek to elevate himself above others, showcasing his humility with a reference to his modesty and reluctance to place himself above Editha. This behavior indicates humility as he shows a willingness to be seen as less to maintain his relationship.
In the second passage, Tucker promotes thrift and self-respect while accepting a position of civic inferiority without protest. His attitude suggests a humble acceptance of his situation without boasting about what he could or should deserve.
Finally, the third excerpt illustrates Tucker's humility in a juxtaposed scene, where after indulging in good cheer, he fantasizes about a more lavish life. Yet, despite these dreams, he does not actually boast or show signs of arrogance; instead, he is portrayed as kind and thankful. The passage emphasizes his humility further by contrasting his joyful imaginings with the reality he does not reject.