18. The method of claim 17 in which a first mode of expression of the communications from the user is different from a second mode of expression of the responses to the user.
18. The method of claim 17 in which a first mode of expression of the communications from the user is different from a second mode of expression of the responses to the user. 19. The method of claim 18 in which the first mode and second mode of expression comprise at least one of text or speech.