We
should
distinguish
between
specifically communicative signals and
those which may be unintentionally
informative signals. Someone listening
to you may become informed about you
through a number of signals that you
have not intentionally sent. She may
note that you have a cold (you sneezed).
when we talk about distinctions between
human
language
and
animal
communication, we are considering
both in terms of their potential as a
means of intentional communication.