1.)From the Insert tab, select the Shapes command. A drop-down menu will appear.
2.)Select the desired shape
3.)Click and drag the slide to create the shape. You may need to move or resize the shape so it points to the desired part of the image.
4.)f you want your callout to contain text, start typing while the shape is selected.
5.)From the Format tab, you can use the options in the Shape Styles group to customize the appearance of the shape. You can also adjust the font from the Home tab
