To play your animation you must be in stored or live mode. On the main toolbar, click the stored button and it will glow to indicate stored mode.

Click the Play button to play your animation. Notice you hand appearing in the shot during the playback.

Click the next or previous buttons to step though your animation.

You can toggle between live and stored mode by pressing the space bar on your keyboard

The play rate (how fast or slow the animation plays back) is visible in the fps (frames per second) window on the main toolbar. Let’s make the animation go faster by increasing the number of frames played every second. Use your mouse and right click the fps window, a drop down menu will appear (left)
Select the option 25 fps. Now press the play button on the main toolbar. You can see your animation play back faster (this is because 25 frames are playing every second, rather than 15).

Change the fps back to 15 fps using the same method.

Next - editing the animation...