If a prayer service takes place during the shiva call, it is appropriate to participate provided that an invitation to participate has been extended by the mourning family. Individuals not familiar with the prayer or service may find it helpful to observe others who may be better versed in the Jewish mourning traditions. Visitors should always behave courteously and refrain from conversation during the prayer service. If a rabbi is present and inquires about the deceased’s life, it may be appropriate to share a brief, heartfelt story that honors his or her memory.