A Willingness To LearnA willingness to learn is my favourite definition of what constitutes intelligence.
Such a willingness shows an openness to discovery and to new experiences. It shows a spirit of adventure.
It also indicates a most important disposition to humility. Someone who thinks they know everything is a crashing bore.
Intelligent people are fun to be with. They are inquisitive and delighted in what they find. They are "can do" people who enjoy the challenge of seeking solutions to difficult problems.
Intelligent people stimulate me and encourage me and I love just hanging out with them.