If a highly intelligent Martian walked into Sturt Bowling Club, wanting to play Night Owls, what could we say to the Martian about etiquette at Night Owls, e.g. what are acceptable moods and appropriate facial expressions?
Looking at the photos attached, some people bring to Night Owls their smiley faces, some people are extremely serious and the same people often can oscillate, on the same night, between happy, serious and somewhere in-between.
Our Martian might need to watch some games for a good while, to learn about managing the emotional rollercoaster of Night Owls.