Connect on Google & type VOKI
Click on Get started and Customize your character
Explore Give it a Voice to make it speak
Click on Publish and Add To Your Site and copy the code
ex :
<script language="JavaScript" type="text/javascript" src="http://vhss-d.oddcast.com/voki_embed_functions.php"></script><script language="JavaScript" type="text/javascript">AC_Voki_Embed(200,267,"6eb71a653e20b39b1047d129c6a8fd3e",1993026, 1, "", 0);</script><BR><a href="http://www.voki.com/"><b>Get a Voki now!</b></a><BR><BR>