Opportunist: is the attitude of do not want to take sides anywhere else, except for
things that benefit him. Usually people more selfish opportunist so it looks selfish and do not like to cooperate with others. Actually not as bad as it seems having opportunistic. Because sometimes we need to
behave like this. For example, when we are in a working team that did not get along and would rather argue than completing the task. Instead of dizziness asked to choose one side of a group, the better things to do is do our own work on assigned tasks, so it can be done right and on time
Pessimism: is a trait that is full of doubt and waver with oneself. People who are pessimists are usually not willing to take risks and be easily discouraged any obstacles. Pessimistic nature is indeed quite a disadvantage because we are not so confident every time you want to do something. It's okay to have fear of failure, but that does not mean we should give up and stop trying. For example, in competition, we realized that other contestant strong enough so it will be difficult to beat them. But, we keep moving forward and trying to show our ability. Means we've managed to beat our pessimistic nature.
Optimists: are filled with positive thoughts and confidence in yourself. People who have properties usually optimistic, confident and courageous decision. Although aware of many obstacles ahead, the optimists will still try to move forward. And if it fails, optimistic people will not be disappointed and sad for too long. Because they believe will be successful if you want to keep trying. We need optimists inside of us every time you want to do something.