Monday was take your baby to work day for Alicia Silverstone!

The 34-year-old new mom brought her adorable son, Bear Blu, along as she shot scenes for her upcoming flick, Gods Behaving Badly, in New York.

Photographed by Bauer Griffin, Silverstone's tot offered a big yawn -- and displayed a tiny hint of a mohawk for the cameras in Yonkers, N.Y.

According to his mom, little Bear Blu will have many more hairdos of note in store as he grows. "[He] had crazy amounts of hair when he came out," Silverstone told Us Weekly shortly after the boy's May 5 birth.

Head-over-heels in love with her little guy, Silverstone -- who's married to rocker Christopher Jarecki -- says it was especially hard to get back to work.

"I didn't leave the house at all for six weeks after his birth," she told Us. "I wanted to soak in every moment of his scrumptiousness."