"He said that sooner or later he supposed the temptation to go after birds would be too much, and that I could shoot all the blue jays I wanted, but to remember it's a sin to kill a mockingbird" pg 33 Which shows he's wise and looks deep into things.
Scout and Jem respect and love Atticus a lot, Tom Robinson also looks up to him bc he is one of the few people to treat Tom with respect, which shows he's kind and doesn't descriminate
He thanks Boo for saving his children, whom he loves very deeply. Also, whenever Bob Ewell yells and spits at him, Atticus is very mature and calm about it.
Atticus wears glasses, emphasizing that he's older and has bad sight. He dresses professionally and always has a pocket watch, showing he wants to be taken seriously.
In conclusion, Atticus is a single parent of 2 kids he loves very much. He's caring and mature. He doesn't follow the stereotypes about black people, defending Tom Robinson without caring how others view him. He dresses nicely, because he is a lawyer.