chilango
Hypothetical Wanker
But hand signals are just really for the facilitator so they know where to lob them in the stack.
Like is someone has a direct point to what the current speaker is gabbling on about. Or a technical point. Or whatever. For the record I'm really not a massive fan but if you're trying to move towards consensus then I'm yet to see another technique working appropriately.
I'm not trying to move towards consensus though...