Yeah, for the hand signals, basically I was thinking you could use it to wave at an NPC and see if they wave back, or just start shooting, etc. Could also be useful with friendlies when you didn't want to alert nearby enemies too, though. Say, if you and your bud were waiting on opposite sides of a road to ambush someone coming by, you could have a signal to open fire, etc. It should probably only work if they were looking in your direction, though. If they weren't facing you, you could shout, with different dialog options like "Drop it or die", etc., but if they had buddies nearby, they'd hear you. I'd also like to be able to throw items as a diversion.