I whipped this up as a quick and dirty addon for testing. It’s an addon, so put it in the addons folder.
Download: http://filesmelt.com/dl/ChatGestures.zip
What this is: A way to use the new gestures on playermodels.
How to use it: Type any of the following chat commands.
List of commands:
/agree
/beckon
/bow
/disagree
/salute
/wave
/dropitem
/giveitem
/throwitem
/placeitem
/signalforward
/signalgroup
/signalhalt
Enjoy!