RE: https://mastodon.social/@Sheril/116460630002225891
it reminds me this paper in Nature (2003): "Adult persistence of head-turning asymmetry" https://www.nature.com/articles/421711a (closed).
"I observed kissing couples in public places (international airports, large railway stations, beaches and parks) in the United States, Germany and Turkey. The head-turning behaviour of each couple was recorded for a single kiss, with only the first being counted in instances of multiple kissing. "

