You may find that you wish to add particular emphasis to certain elements of your presentation. Prezi provides several "shape" tools with which you can do so. Click on the "shapes" bubble in your "tool wheel" (or type the letter "s" on your keyboard) and then click the bubble corresponding to the shape you wish to add.
The top bubble allows you to place arrows in your presentation. Click and hold to begin your arrow, moving your cursor in the direction you wish it to point, and drag your mouse until the arrow reaches the desired length. You will also be able to edit these aspects after the fact (see this page).
The second bubble is a "line-drawing" tool.
Click and hold, moving your cursor in the direction you wish the line to go, and drag your mouse until the line reaches the desired length. You will also be able to edit these aspects after the fact (see this page).
Prezi also offers you the ability to insert three kinds of geometric shapes: rectangles, circles, and triangles.
For all three of these tools, simply click and hold your mouse, and drag it until your shape is the desired size. You will be able to edit its scale (though not the width of the line) after the fact (see this page). You can also alter the proportions of both the rectangle/square and the triangle, though you cannot transform the circle into an oval.
There are also two "free-form" tools available. With the "pencil" you can create sketches or notations by simply clicking and dragging your mouse.
If you move your cursor very quickly you can make a (nearly) straight line. You can later reposition, rotate, and rescale. In this instance, rescaling will only lengthen and shorten, not widen or narrow, your mark. Note that if you are "sketching" you will have to re-select the tool after each mark you create.
The last bubble permits you to "highlight" elements of your text.
Click and drag your cursor to create this effect. If you move your cursor quickly, prezi will adjust your highlight to a straight line. Otherwise it will appear somewhat ragged to emulate a "hand-drawn" effect. And again, you can rescale, rotate, or reposition your highlight after you execute it (see this page). Note that in this case rescaling will both lengthen/shorten and widen/narrow your mark; you cannot alter these aspects individually.
If you have used the marker tool to emphasize your text, Prezi suggests moving the highlight behind the corresponding words to achieve the best effect. To do so, right-click on the highlight and select "send backward" from the pull-down menu.
Observe the difference:
To edit any of the above shapes, return to "write" mode by clicking on that section of your tool wheel or by pressing the space bar on your keyboard twice. Highlight an item with your mouse and click on it to access the zebra tool. Tip: if you wish to edit a line you've drawn, you may need to zoom in or out of your presentation in order to highlight it.
