Expert Social Intuit: Wonder Woman, as Diana Prince, has a high degree of social confidence (having had a century of experience living in "Man's World" after World War I), allowing her to intuitively determine how to interact with others, gain their respect and get her point across with calmness, eloquence, and charisma. Hence, Diana swiftly befriended the Wonder Men, she diplomatically greeted Bruce Wayne, matter-of-factly showing him that she can intellectually keep up with him (calmly responding to Bruce's anger at having been stolen from by her), she tactfully accepted a wine glass from the Gotham City Museum of Antiquities curator (despite seemingly disliking alcoholic beverages), she tactfully avoided correcting the curator on his claim that the fake replica of Alexander the Great's sword was the actual relic, and only when Lex Luthor insulted her father Zeus' memory did Diana have a look of visible dismay on her face (but even then she avoided making a scene), and only when Batman insulted her beloved Steve Trevor's memory did she finally lose her temper and shove Batman back. As a result, Diana remains extremely well-respected at the Louvre Museum, by fellow antique museum curators, by the Justice League, and even the extremely experienced Batman is almost instantly intrigued by her.
As they walked, Trevor noticed that they were being followed. He tried to lose them by taking a turn down a back alley, but instead walked straight into a German spy's gun. The man ordered Trevor to give the notebook back; he refused, instead headbutting the man. He told Diana to stay back at the man took aim and shot at them. Diana reached out her arm, blocking the bullet off her gauntlet and saving Trevor's life. Diana then fought the German spies single-handedly; her spectacles were crushed in the fight.
Diana is a very kind, loving, compassionate, and strong-willed person, who, while initially somewhat naive, has become all the wiser through her time in Man's World. An outspoken egalitarian, she fights for what she believes in and generally for the betterment of mankind through love and mutual understanding, as taught to her by her mother and fellow Amazons. Growing up, Diana also proved herself headstrong and determined to do what she wanted, such as training in hand-to-hand combat under her aunt Antiope's tutelage despite her mother initially forbidding it. In this way she is quite stubborn; if she believes something is the right thing to do, then she will do it - as evidenced by her attempt to leave Themyscira without her mother's permission and insistence in attending Ludendorff's gala despite Steve telling her not to. Alongside her kindness and compassion, however, Diana was also a very naive idealist when she first arrived in "Man's World", blindly believing that all men were corrupted by Ares and that the World War I Central Powers would simply abandon their sinister ways if she killed him. This blind naivety also translated to explicit indignation whenever she was treated with disrespect due to her status as a woman, such as when she was ignored by members of the War Office. Alongside this, Diana also voiced her opinions rather bluntly upon her arrival, such as when she perceived Etta Candy's job as Steve Trevor's secretary to be akin to slavery (which earns Diana Etta's admiration). Despite her outspokenness and behavior in Man's World, however, Diana remained caring and compassionate, as demonstrated by her initially rocky relationship with Charlie and willingness to step into No Man's Land to save the village of Veld.
Wonder Woman and the other heroes were finally released from the Firestorm Matrix when Batman used the Lasso of Truth on Firestorm. Superman was still infected with the Kryptonite shard inside his nervous system, but Lex Luthor was able to extract it, saving Superman's life. Luthor also assembled a group of villains that defeated the Crime Syndicate. Later, at the Batcave, Wonder Woman and the Justice League talked about the enemy that destroyed the Crime Syndicate's world and came to the conclusion that Darkseid would return.