Someone who enjoys being with other people
Outgoing
Someone who thinks he/she is better than anyone else
Egotistical
Someone who is honest and frank
Straightforward
Someone who doesn't change his/her mind, who is stubborn
Inflexible
Someone who doesn't like spending or giving money
Stingy
Someone who doesn't brag about his/her accomplishments
Modest
Someone who changes his/her mood easily, who is unpredictable
Temperamental
Someone who is helpful and encouraging
Supportive
Someone who doesn't worry much or get angry easily
Easygoing
Someone who is kind and respectful of others
Considerate
Someone who doesn't do what he/she promised
Unreliable