Originally Posted by luigimar
I would say it was a great guesstimation. You gave her some information and with that she correctly guessed your location, based on what she knows about the general place where you all move around.
If you had given her just some cryptic information like a number or some random letters (or a combination), she would have had a harder time saying where you were or what picture you had in your mind with just that.
Just my two cents.