Dog days

This morning while I was waiting for a bus to take me to the pool there was a huge rottweiler on the back of a ute waiting at the traffic lights opposite. The rottweiler was alternating between whining and panting. I felt sorry for it, so when it hung out it's tongue I hung out mine and panted too, mimicry being the game primates fall back on.

I was vaguely aware that there were people watching me from the car behind the ute but I figured that watching a woman poke her tongue out at a dog might lighten up their morning.

The dog cheered up. The ute drove off. I looked at the people behind more closely and realised I knew them, professionally. I waved.

Do you think one wave can communicate: "Did you have a good holiday? I was just playing with that dog you might not be able to see. I am not insane, just friendly, and I look forward to working with you in the new year."?