All Dashboard components on the Analyze page are clickable and interactive. Clicking on sections of the widgets will filter the results and show a list of corresponding mentions in the mentions list on the panel in the far right. Hovering over specific component areas will show you the volume of mentions of that datapoint or grouping.
Filter and configuration data is not always present for every mention. Thus, volume for the filtered dataset may not add up to the total mentions volume. For example, not all mentions include gender data. Therefore, the sum of male and female mentions will not be the same as the total mentions volume.