According to the caption, they were leaving the William Morris Endeavor (WME) Party in Brentwood.
This is what the Sunset Marquis Hotel looks like:
They were headed to the Chateau Marmont for dinner …
ROBSTEN Sighting at Sunset Marquis, Pre Oscar Party
what doer @taryder mean when she says Kristen is the s**t ? sorry my english not good enough to understand that
at shateau marmont this time-party hopping:D https://twitter.com/#!/claudiaciuffo/status/173331004621193219
It means Kristen is awesome…it's just a more exciting way to say it.