Character is more than behavior. Although much can be assessed by a person's behavior, one cannot dismiss the innate nature that dwells within the individual. This innate nature is also character. And different characters have different strengths and weaknesses.
Character is personality. Is someone extrinsically motivated. That is, are these "social beings"? Or is the nature of a particular individual more internally motivated? "He is a enthusiastic person"; "She loves to discuss ideas"; " He loves to work with his hands"; "She likes to have people over for dinner". These aspects of personality cannot be disregarded when considering what type of character one has.
Innate nature does not change, (unless there has been an overcompensation from a "past"), but how that nature expresses itself may. People grow, discover new interests, and change their desires throughout their lives. Someone must know someone well, to understand a person deeply. And this sometimes takes years, Some people are never known deeply, as one must be open to be known.
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