02/17/2012 at 06:00 AM EST
left her fiancé Will Koppelman
at home and hit up Barneys Co-Op at The Grove in West Hollywood. The actress, dressed-down in loose fitting jeans, was shopping for casual clothing, specifically scouting out Current/Elliot and Rag & Bone denim, along with some sweaters. Barrymore was very sweet with the sales associate who was picking out clothes with her, and managed to keep a low profile, a source tells us.