Simpson, 25, rode a bus from Nairobi to the town of Nakuru in western Kenya, where she sat in on an operation to correct the cleft lip and palate of 18-month-old girl Boke, (top), one of 158 procedures that Operation Smile's plastic surgeons performed during Simpson's visit. "I was there from scrub up to the end," she says. Adds Dr. William Magee, Jr., cofounder of Operation Smile, "She was great – she didn't flinch."