>>538892153
They definitely do that, I bet it dates all the way back to when they still had to hunt to eat. They'd shake and spin each other as a means to strengthen the roll because it was really important for survival back then. Nowadays for a pippins to ask another if they'd like to be shaken or spun by them it's probably a very friendly gesture and whether the receiver returns the gesture or not is what makes or breaks a budding friendship.
Fuck, I need someone to make an infographic about pippins social gestures and dynamics.