The best way is to keep things calm and non-confrontational. Listen to what other have to say but do not get involved in business that isn't yours. To minimize the chances of gossip or conflict interfering with work, it is best to keep your work and personal life separate. You should feel comfortable and welcome around your coworkers, and careful not to release too many personal details. It is best not to repeat what you overhear in order to avoid the spread of rumors.