Murphy has claimed a chair on the deck. It HAS to be hers now... she made her mark on it already! To be fair, I believe Ringo had a paw in this wanton destruction, but it's very clear to me that nobody but Murph will be able to use this chair again.
It's the "I see you, why won't you let me in" look.
And, the "Maybe if I stare more intently at you, you will open that door!" look.