Its time we updated emotes in the game, this is a good time to experiment.
Some recommendations:
/dust for dusts hands or dusts his hands of target
/Wipe Wipes their brow or hands target a handkerchief
/shut Remains silent, stops talking to target
/Turn Turns 360 degrees and walks away from target
/write Writes that down or Takes notes on target
In making this list I discovered that /suspicious, /signal, and /offer are already /emotes, gullible is not an emote, trust me on that one.