hey mastablasta, if you want to add new voice commands you have to use for example this :

ear.addCommand("open hand", "python", "handopen")

i'll explain how is this composed :

"open hand" is the voice command you want to add, so after adding it MyRobotLab will "Listen" for that command too

then you need to add an action to do when that command is heard :

"hand open" : you are saying you want to execute "handopen" function when the "open hand" command is heard and "python" means that the "hand open" function is in python...

In fact the action you want to do, will look in this way in python :

def handopen():      

         put here what you want to do

In your case you did it in the right way !

Now you just have to create the "shakehand" function in python

ear.addCommand("shake hand", "python", "shakehand")

def shakehand():

       print 'hey i'm using a new function !'

markus got a very good script, when you say something too many times, it react on that, might be usefull for U, gael put it in his inmoov2full3 script

Do you have pics of your bot?

Only the size should be fixed, the rest, it will work.