A few different
I use many that are listed already. In addition I use:
Hand extended and horizontal, palm towards body, a sweeping motion away from my body means go away.
Arm at my side, palm to the rear, sweeping motion up means Off. (Patio, deck)
Arm lifted horiziontel from body with index finger pointed means Out. (Shop)
"Dogs were put on Earth to demonstrate unconditional love, cats are here to teach us we aren't that **** important"