Sarah Michelle Gellar threw on a floral Rebecca Taylor dress for a charity event at the LA Public Library on Tuesday. She met with and read to a group of children as part of her involvement with Nestle's Share the Joy of Reading Campaign. Sarah was able to volunteer her time after finishing up filming her pilot, The Ringer, in NYC last month. The series features Sarah Michelle playing twins, and if picked up, would be her first successful return to the small screen since Buffy the Vampire Slayer. We can be sure she won't be stepping back into her most famous character, though, since Sarah recently commented about the possibility of a Buffy reboot, saying "that's the dumbest idea I've ever heard."