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Looking over-the-top glamorous, even in a simple black tank top, jeans and a pair of high heels, Blake Lively, is classy casual as she reportedly spends the morning scouting for an upcoming film in Boston with Ben Affleck.

However, on her birthday, the 22-year-old managed to squeeze in some celebrating time. The star donned a dress from the Kate Moss for Topshop line and hit up the Tiffany & Co. and InStyle party celebrating Frank Gehry and tennis star, Maria Sharapova. At the shindig, the Gossip Girl star was presented with a chocolate birthday cake.

As for her plans for the late evening, Lively told People magazine, “I have nothing planned. I’m going to a lovely dinner, but it’s a surprise.”

Gallery Info: Blake Lively spends the morning location scouting reportedly with Ben Affleck for an upcoming film in Boston.