Cats are weird

My cat has taken to drinking out of the bathroom sink. I'm not quite sure why. It's kind of amusing because just before she jumps up on the counter she'll look at me like I'm about to admonish her. I'll say, "Spooky..." and she'll meow at me. Then we'll proceed to do this a few more times. Then out of sheer cheek, she'll jump up anyway and start licking the sink.

I'm baffled but bemused.