Boys & Girls Laughing Together

This study in the journal Cognition and Emotion compared gender and familiarity of paired subjects to see how frequently shared laughter (“antiphonal” laughter) ensued as they undertook everyday tasks like drawing pictures of each other. The “transitional probabilities” are the chance that one person laughing would become mutual.

It’s surprising how much female-female strangers laughed together, making me wonder if it was just that polite/chatty/awkward kind or if they really bonded that much. Also, men don’t do well with strangers. From personal experience, I laugh with strange men all the time. But, then, rarely are we drawing pictures of each other - apparently in this study a lot of the men drew each other with very small penises. Or simply as penises entirely.