Are you an "I" person or an "E" person? There is a personality test called MBTI. It is said that if people are "I", they are (很可能) not so outgoing, while "E" people may make friends, enjoy parties and (分享) their happiness and sadness with others more. Of course they can have things in (共有的;共同的). In fact, experts use the (信息) from the test results to help tell what you might be good at in your future job. But don't take it too seriously. Anyway, never let a test tell you who you are. Don't find the real you (直到) it's too late.