One way to do this is using Dingbat Fonts that have pictures of people in different positions, can't think of the name of one off hand but someone will come up with it, the idea is to use a place and remove command on the timeline for each frame you want the charachter to move, basic animation fundamentals.

see the heading at http://www.swishspot.com for an example

See how you go, you can also use animated gifs, you will just have to hunt down the ones you want! then import them as a sprite into your movie!

Cheers Brettski...