To define the scope of user data returned in the query, select People Scope from the Edit dropdown menu.
People scope is only applicable when reporting on user data.Define Scope of People
People Scope allows you to customize your query to a select group of people. You can define the scope by people, division, department, or location. By default, each query starts with the Team view (direct reports) of the logged in user.
If the user does not have any direct reports, then the query results will be empty. You need to change the People Scope in order to see query results.
Hint
If you are a report designer and do not have any direct reports, you must change the default configuration while building your query, otherwise you will not return any data. You can change it when the query is finalized
This feature allows queries to return results that include the person running the report (if set to logged in user) or include the user the report is "starting from". First, select the Reporting Type you would like to customize the query around from the People Scope window. Then, select Logged in User from the Define Team window.

Note
User Prompted People Scope
You can also make the People Scope user prompted when running the report. To do this, you need to select the checkbox.