The stars of "Pretty Little Liars: The Perfectionists," Sasha Pieterse, Janel Parrish, and Sofia Carson take a friendship test. They give each other compliments, stare into each others' eyes, hug for three minutes, and do trust falls with each other. "Pretty Little Liars: The Perfectionists" premieres Wednesday, March 20 at 8 PM ETPT on Freeform.