Quite often, the audio delay from site to studio will result in a nod, indicating that the on-site individual is waiting for the delay or backdrop to fade. All on-scene reporters nod, indicating to the on-air talking head or on-air reporter that they heard or saw the question or statement. This allows them to continue with the story. Reporters use cameras to record events as they occur. The video camera provides evidence of what happened at a particular time and place. In order for an audience to understand the context of what is being recorded by a reporter, that person will usually mention important details such as times, dates, and places. For example, a reporter may note that one event occurred on July 4th at 1:00 p.m. By noting this information, readers know that they are watching footage of an actual event that took place in an actual location at an actual time. News anchors work behind a desk or a counter where they can read notes or a teleprompter while appearing live on air. They may also have a background in acting so they can portray different people or characters during the news report. For example, an anchor may play up certain emotions or tones of voice when reporting on serious topics such as wars or natural disasters in order to bring understanding and compassion to their viewers. News anchors need to be aware of what is happening around them while reporting. They must also come up with creative ways to keep their audiences interested.