After seeing the nice animations in the game and just watching The True Partners (Crysis 2 Machinima) . i had this idea.
Add another bank of vsays numbers say 9, 9,1 ; 9,2 ; etc
But instead it vplays an animation for your player.
examples could be. Wave, beckon, [SIZE=2]celebrate, tatical hand gestures, warning (two arm wave), Follow me[SIZE=2] etc etc.
You could have one for e[SIZE=2]very vsay and combine into the one vsay command, but the problem is a player might not want to use the animation. might cut down on vsay spam though[SIZE=2]. thats why i think i would prefer [SIZE=2]separating them. Also it lets a player choose the combinations they want. ie vplay anim wave, vsay you suck.
I dont think they would interfere with the game. And i think it adds a little humor.