Entertainer Milton Berle said, “If opportunity doesn’t knock, build a door.” In business, if customers are not knocking down your door, it… — Entertainer Milton Berle said, “If opportunity doesn’t knock, build a door.” In business, if customers are not knocking down your door, it may be because you need to build credibility first, and public relations can help. You cannot build credibility in a day. However, there are strategies you can adopt…