Piper Palin, the 7-year-old daughter of Republican vice-presidential nominee Sarah Palin, licks her hand and applies a little spit shine to the soft head of younger brother Trig, 4 months. The camera panned to Piper and Trig while Sarah gave her acceptance speech during the the Republican National Convention (RNC) at the Xcel Energy Center on Wednesday night in St. Paul, Minnesota. Watch the cute video below!