I'm reading John Meacham's biography of George Bush Senior, and the one interesting thing about him is his willingness to just talk to people.
This may not sound like a lot, but in politics there is always a lot of personal feelings involved. People are super clear about their positions having arrived at it personally and professionally. People are voted and incentived to have strong personal feelings and conviction.
The best politicians have strong opinions, but also very open to engaging in dialogue to learn more. That was one of the defining characteristics of Bush.