Sizing handles (sizing handle: One of the small circles or squares that appears at the corners and sides of a selected object. You drag these handles to change the size of the object.) indicate that the object or group of objects has been selected.
Do one of the following:
Select one object
Note To select an object that is under other objects, first select the object on top, and then press the TAB key to cycle forward (or SHIFT+TAB to cycle backward) through the objects.
Select multiple objects
To select hidden or stacked objects, you can also use the Select Multiple Objects command. Add this button to the Drawing toolbar (toolbar: A bar with buttons and options that you use to carry out commands. To display a toolbar, press ALT and then SHIFT+F10.).
Select one or more objects without using the mouse