To find people you just select on or more faces of the people that you want to find.
Furthermore, various filter options are available to make the search more specific.
1 Display window in which found face regions are displayed and can be selected. If necessary, frontal faces can also be marked manually (left mouse button + draw rectangle).Use the mouse to select one or more faces. To delete, use the right mouse button.
2 Various filter options for the people you are looking for
3 Here you can specify whether to search for photos that include all persons, or whether to perform a separate search for each person.
4 This window displays the annotations for the face selected by the mouse pointer.