teenagers can also expand their interpersonal relationship by having a part time job. In the recent year, interpersonal relationship has become the most important factor in our working environment. If we have a good relationship with our colleagues or friends, when we have problems or want other people to help us, they will try their best to help us. I have read an article; it said, “Without friends, we will not do anything perfectly.” I have the same thought with the writer of this article. Interpersonal relationship is really important in our working place.