One of the things I have studied in more recent years is semeiotics or semiotics -- the signs through which we communicate. Through this I became aware that I routinely (I would think daily) use a sign for "Yes" which I picked up in the mission as a boy, in the central Pacific. I still use it fifty years later -- but it is not a sign for "Yes" in my own culture. It might be completely useless. OBSERVATION: And there will surely be many things like it that I have missed. It makes me wonder about the uncountable influences on our lives, and how they still are with us.