Indeed - all those extra banners should definitely to the trick.
For those looking to celebrate tonight, Qianmen Dajie has a festival. Global Times reports: "Celebrations will reach a climax at 6 pm on Thursday, when all the lanterns will be lit and huge crowds of visitors are expected to attend the carnival, which runs till midnight."
http://beijing.globaltimes.cn/society/2011-02/623952.html