They have a positive attitude towards the job of being president.
Others have not had as much energy as they could have, or have been put under too much pressure by being president.
According to Barber, they acted out their roles as they thought they should.
Ronald Reagan and George W. Bush were similar to the passive positive president.
They liked being a leader but believed that the job was more about setting the tone and not taking an active policymaking role.
One of the clearest examples of an active-negative president is Richard Nixon, who had lots of energy but could not enjoy being president.
Donald Trump probably falls into a passive-negative category after two years.
His frequent weekends playing golf make it clear that he misses his old life, and he rarely looks as though he is enjoying being president.
He took on a more active foreign policy stance after getting some of his signature domestic programs through Congress.
Assessing individual personality is fraught with danger.
Few politicians fit neatly into Barber's boxes.
In addition to their personality differences, presidents strive to create their own presidential style, an image that captures symbolically who the president is for the American people and for leaders of other nations.
Personal differences in how presidents present themselves are real, but they are also carefully cultivated.
Eisenhower developed his "Victorious General" image as a leader above the politics of the day.
John F. Kennedy embodied the theme of "getting the country moving again" with his personal image of youth and energy.
Jimmy Carter promised honesty and competent government after Watergate and Richard Nixon's disgrace.
Ronald Reagan's "it'smorning-in-America" optimism and calming, grandfatherly presence were soaked up by an eager public.
Clinton was also a man of large appetites, from his jogging breaks to eat at McDonald's to his extramarital affairs.
People approved of Clinton's leadership through the end of his presidency, but a majority of citizens were concerned about his honesty and moral character.
George W. Bush had a different set of characteristics.
He was seen as a nonintellectual who joked that C students could grow up to be president and was willing to leave others to get the job done.
Despite a reputation for high living in his youth, Bush's pledge of abstinence, traditional marriage, and frequent references to Jesus Christ helped to put a moral tone on his presidency that Clinton's had lacked.
Barack Obama's disposition to the White House was evenkeeled.
The first term of his presidency was marked by the economic and environmental crises, but his calm demeanor remained the same.
He said that he doesn't get too high when things are going well and that he doesn't get too low when things are tough.
Ronald Reagan's optimism, Bill Clinton's braininess, and George W. Bush's faith were incorporated into Obama's image.
Many people applied this label to President Ronald Reagan because of his ability to connect with the American public.
His effectiveness was not related to explaining complex policy decisions.
He conveyed a sense of confidence, trustworthiness, and warmth.
One part of Obama's style seemed to be his own.
In his first term, he brought to office a deep commitment to bipartisanship that had given way by the end of his second term as he fought to solidify his legacy.
Since America's infancy, mockery has been a weapon of choice for those seeking to speak truth to power.
Tweed offered Thomas Nast $100,000 to stop drawing cartoons about him, but Nast refused.
They can see pictures.
For many Americans, the real presidential personality was overshadowed by the interpretations offered by Chevy Chase, Darrell Hammond, and Will Ferrell.
By the year 2008, Tina and Amy were taking Hillary and Sarah to task.
Comedy writers and performers have their way with skit ready presidential candidates like Larry David and Alec Baldwin.
It's all in good fun, but comedy can help define the way Americans view their candidates and leaders.
There are comic skits and cartoons to poke fun.
Dana Carvey created a caricature of George H. W. Bush that was funnier to watch than the real president was.
The goal was pure entertainment in both cases.
Basic cable shows might appeal to a slightly more niche audience.
If the caricature is built around a grain of truth, it will be effective.
The truth and the bluster of humor are built around it.
Alec Baldwin mimicked Donald Trump's mannerisms when he impersonated him on "Saturday Night Live", but he took much of his dialogue directly from transcripts of SarahPalin's own words.
Even the most benign humor can make a lasting impression, even though it's easy to dismiss comedy as all in good fun.
Donald Trump's presidential style is his own.
We have already seen his personality, and his willingness to say whatever comes into his mind, regardless of who might be offended.
Although his supporters liked his lack of political correctness, they kept waiting for him to change to a more presidential style through his first two years in office.
Even though he could be president, Trump didn't want to be more toned down because it would be Time that would tell if he listens to his own voice or not.