Kalle made a nice video last year on how to use command confirmation: http://www.youtube.com/watch?v=_D17Zk1MMZQ
It also demonstrates how to use an event trigger, so take a look if these are concepts you're still learning.
(And in the wiki, see: http://voxcommando.com/mediawiki/index.php?title=Options#Confirmation_Command_Phrases)