“Surely there are two phenomena: one, just speaking, the other, seeing & speaking accordingly. Answer: Certainly we speak of these two cases but we shall here have to show how
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these expressions are used; or, in other words, how they are taught. For the mere fact that we possess a picture of them does not help us as we must describe how || in what way this picture is used. More especially as we are inclined to assume a use different from the actual one.
     We have therefore to explain under what conditions we say: “I say ‘red’ but don't see red” or “I say ‘red’ & see red”, or “I said ‘red’ but didn't see red” etc. etc..
     Imagine that saying red was often followed by some agreeable event. We found that the child enjoyed that event & often instead of ‘green’ said ‘red’. We would use this reaction to play another language game with the child. We would say “you cheat, it's red”. Now again we are dependent upon the subsequent reaction of the child.
     Such games are actually played with children: Telling a person the untruth & enjoying his surprise at finding out what really happened.