witch thanks for explaining I would never have guessed that hehe
So I'm guessing some of these emoticons are linked to what people watch/listen ? Doctor who? 
I wonder if they figured out archers and dr who most popular and tennis, cycling and football most popular sports talked about?
Surely there should be emoticons for OPK, ovulation, eggs, sperm, a calendar, a child boy, a chIld girl and a stressed woman ( I imagine that would be used the most from all the threads I read on mumsnet!) to think of a few off the top of my head!