There were usually three or four of us bouncing around in the back of the station wagon
at any given time. We were all very cute....

The object of the game was to make the people behind us get "fed up" and
pass us.

We would wave sweetly or throw a peace sign at the people behind us, then we WOULD NOT STOP
waving and being cute. This would eventually make the travelers behind us acutely uncomfortable.

The game was scored thusly:

Driver or passenger waves back: 1 point
Driver passes us: 2 points
Driver or passenger flips us off: 5 points

We played this game for YEARS before my father, who always drove the speed limit,
figured out what we were laughing at, and why people gave him dirty looks when they
finally managed to speed past us.