Reaching of the trunk to touch or to sniff the ear oriface of another.
Two males stand side by side, one older than the other. The younger one is exploring the older males mouth and face, gently touching/sniffing Trunk-to-Mouth and Trunk-to-Face. He touches the males tusks and rests his trunk upon it. The older male reciprocates by reaching Trunk-to-Mouth to the younger male and puts his trunk in the other males mouth twice before touching his own face (Touch-Self). The younger male then resumes his exploration carefully and gently touching the larger male on his forehead, above his eye and in his ear - Trunk-to-Ear. (Maasai Mara, Kenya)