- Click on it
- Use the selection box
When using the selection box, click once in the Drawing Area and then click again to establish the selection box. If you specify the corners from left to right (called window selection), all objects inside the selection area are added to your selection set. If you specify your corners from right to left (called crossing selection), all objects inside or crossing the box are added to the selection set.
Add or subtract objects to or from a selection set by selecting the object(s) while holding Shift.