Elizabeth Olsen checks her phone messages while heading for the C train on the subway on Thursday (September 5) in New York City.

Earlier in the week, the 24-year-old actress was spotted enjoying some tennis while attending day eight of the 2013 U.S. Open.

PHOTOS: Check out the latest pics of Elizabeth Olsen

Last week, Elizabeth was engaged in a deep conversation while enjoying lunch with some gal pals in the Big Apple.

Next month, Lizzie will start promoting her upcoming flick Kill Your Darlings, which will hit theaters on Wednesday, October 16 in LA/NY.

FYI: Elizabeth is wearing Ancient Greek Sandals and carrying a Marni “Sculpture” bag.

15+ pictures inside of Elizabeth Olsen riding the subway…