Great P-rading takes practice, as the Class of 2006 learned last weekend. On Friday afternoon, classmates tried out their "Thriller" moves under the tent. (Video courtesy of Saahill Desai '06)   And in the P-rade, they put their lessons to work, with help from a Michael Jackson impersonator. (Video courtesy of of Margaret McGlynn '86)   Send your short video clips and must-see photos from Reunions to Your photos may appear in the July 7 issue of PAW or at PAW Online.