What makes up a person's character?

There are many character traits in people, for example:

You can observe variety of people in your life with the following attitudes that build up their character and tends them to behave in a particular manner. In fact our attitude dominates our actions and later on it becomes a character:

People can be-

optimistic,

pessimists,

realists,

individualists,

imaginative,

arguing,

self centered and many more types that makes their character.