Email from CGY.:
I recently read a BBC article detailing some of your work into the uses of 'uh' and 'um' in germanic languages: Ari Daniel Shapiro, "Why we are saying "uh" less and 'um' more", PRI's The World, BBC News 2/7/2014.
I am not a linguist of any sort however I thought you may find some interest in my personal experience. I am a 20 year old English speaking women and I use 'um' almost exclusively as predicted by your research. I am aware that I use 'um' in almost all social situations as I find using 'uh' sounds too sexual. Likewise if I am flirting with someone I find myself using 'uh' almost exclusively.
I thought that this might be the case for others and possibly help provide some explanation for the pattern. Possibly the rise in usage is proportional to the increase in exposure to pornographic material?
This interesting hypothesis is more or less the opposite of the idea discussed in "Labiality and femininity", 12/26/2014, thereby supporting the generalization that for every functional argument, there is an equal and opposite counter-argument.
But seriously, do other young women share CGY's intution?