On the Drawingtoolbar, click AutoShapes, and then point to Lines.
Do one of the following:
Click Freeform to draw an
object with both curved and straight segments. Drag to draw freehand shapes; click and move the mouse
to draw straight lines.
Do one of the following:
To end a shape and leave it open, double-click at any time.
To close a shape, click near its starting point.
Click Scribble and drag to draw a shape that looks more like it was drawn with a pen or to create smooth curves.