I rate myself as 5 out of 10 in extrovert. When I was in a position to meet many people in the presentation. I don't know what to do next,because by that time I very excited. So,I have to train myself to be conscious and assertive in front of many people. It is usedful to myself. Besides that, I need to train myself by doing what don't precisely is to meet and talk with people more common. This is one way to change myself.