Re:Originally Posted by navi tasan
Usually, in ordinary conversation, the speaker would mention the name of the person in question. One reason he might not is that he doesn't want the listener to know who it is.He went out with his friend.
The two example sentences seem quite different to me, so I don't know why anybody would use one to mean the same thing as the other one.
BTW, you seem to use "listener" when you really mean "speaker". Am I wrong?