Is this Saturday, May 7. Drop by your Local Comics Shop to get your free comic/comics and check out the other wares in the shop.
For more information, check out http://www.freecomicbookday.com/, where you can find info about the comics available and locate your LCS.
I will be out and about in Manhattan's fine comics shops, seeing what I can see. Likely stops include Midtown Comics in Times Square, Jim Hanley's Universe at 5th and 33rd, and Cosmic Comics in the Flatiron District, home of the hottest comic salesgirls in Manhattan.
Whatever you do on FCBD, have fun.