Openness and honesty: Open, honest communication is the key to building workplace relationships and demonstrating professionalism. While you do not need to discuss personal or private topics in the workplace, being transparent and honest about work matters, and generally being willing to communicate with others is vital. People can sense when someone is hiding something or withholding information, and tend not to trust him or her. This damages workplace trust and relationships, and may lead to lower productivity and morale. Each of us has a different level of comfort with what we choose to disclose about ourselves, but being willing to share parts of yourself with your colleagues also helps to build rapport.