Sarah Michelle Gellar is so down to earth, she'll even wait on your table.

The Daily News is reporting:

"While dining at the Charles with two gal pals, the pint-size pregnant actress didn't bother a waiter for a refill on her water — she got the pitcher herself. One male patron nearby held up his empty glass. "Ladies first!" Gellar quipped, serving her friends before going to his table."

Fun!