Purposefully brushing a (usually) flared ear against the face, head or body of another.
A family group had paused here to Mud-Splash on the way to Lenkolong. Most have moved on, but this female stayed and Waited for a medium sized male to arrive. He reaches Trunk-to-Genitals and then Social-Rubs against her. She Ear-Brushes him and then engages in a deep Social-Rub against him. It is very intimate and friendly and we couldn't help but wonder what their relationship is. Might he be related to her? (Amboseli, Kenya)